Coppola, M. (2002). The emergence of grammatical categories in homesign: Evidence from family-based gesture systems in Nicaragua. Unpublished Ph.D. dissertation, University of Rochester, Rochester, NY.

Fischer, S. D. (1973). Two processes of reduplicaton in American Sign Language. Foundations of Language, 9, 469-480.

Goldin-Meadow, S. (1982). The resilience of recursion: A study of a communication system developed without a conventional language model. In E. Wanner & L. R. Gleitman (Eds.), Language acquisition: The state of the art. New York: Cambridge University Press.

Goldin-Meadow, S., & Mylander, C. (1990). Beyond input given: The child's role in the acquisition of language. Language, 66(2), 323-355.

Johnson, J. S., & Newport, E. L. (1989). Critical period effects in second language learning: The influence of maturational state on the acquisition of English as a second language. Cognitive Psychology, 21(1), 60-99.

Klima, E., & Bellugi, U. (1979). The signs of language. Cambridge, MA: Harvard University Press.

Morford, J. P. (1996). Insights to language from the study of gesture: A review of research on the gestural communication of non-signing deaf people. Language and Communication, 16(2), 165-178.

Newport, E. L. (1990). Maturational constraints on language learning. Cognitive Science, 14(1), 11-28.

Padden, C. (1983). Interaction of morphology and syntax in American Sign Language. Unpublished Ph.D. dissertation, University of California, San Diego, CA.

Polich, S. (1998). Social agency and deaf communities: A Nicaraguan case study. Unpublished Ph.D. dissertation, University of Texas at Austin.

Quine, W. V. O. (1960). Word and object. Cambridge, MA: MIT Press.

Senghas, A. (1995a). Children's contribution to the birth of Nicaraguan Sign Language. Unpublished Ph.D. dissertation, Massachusetts Institute of Technology.

Senghas, A. (1995b). The development of Nicaraguan Sign Language via the language acquisition process. In D. MacLaughlin & S. McEwen (Eds.). Proceedings of the 19th Boston University Conference on Language Development (pp. 543-552). Somerville, MA, Cascadilla Press.

Senghas, A., & Coppola, M. (2001). Children creating language: How Nicaraguan Sign Language acquired a spatial grammar. Psychological Science, 12(4), 323-328.

Senghas, A., Coppola, M., Newport, E. L., & Supalla, T. (1997). Argument structure in Nicaraguan Sign Language: The emergence of grammatical devices. In E. Hughes, M. Hughes & A. Greenhill (Eds.). Proceedings of the 21st Boston University Conference on Language Development, Boston: Cascadilla Press.

Senghas, R. J. (1997). An `unspeakable, unwriteable' language: Deaf identity, language & personhood among the first cohorts of Nicaraguan signers. Unpublished Ph.D. dissertation, University of Rochester, NY.

Senghas, R. J. (2003). New ways to be deaf in Nicaragua: Changes in language, personhood, and community. In L. Monaghan, K. Nakamura, C. Schmaling, & G. H. Turner (Eds.), Many ways to be deaf: International, linguistic, and sociocultural variation (pp. 260-282). Washington, DC: Gallaudet University Press.

Senghas, R. J., & Monaghan, L. (2002). Signs of their times: Deaf communities and the culture of language. Annual Review of Anthropology, 31, 69-97.

Singleton, J. L., Goldin-Meadow, S., & McNeill, D. (1995). The cataclysmic break between gesticulation and sign: Evidence against a unified continuum of gestural communication. In K. Emmorey&J.S.Reilly(Eds.),Language,gesture,andspace(pp.287-311).Hillsdale,NJ:Erlbaum.

Slobin, D. (1973). Cognitive prerequisites for the development of grammar. In C. A. Ferguson & D. I. Slobin (Eds.), Studies of Child Language Development (pp. 175-208). New York: Holt, Rinehart & Winston.

Supalla, T. (1982). Structure and acquisition of verbs of motion and location in American Sign Language. Unpublished Ph.D. dissertation, University of California, San Diego, CA.

Supalla, T. (1995). An implicational hierarchy in verb agreement in American Sign Language. Unpublished manuscript.

Taub, S. (2001). Language from the body: Iconicity and metaphor in American Sign Language. Cambridge, UK: Cambridge University Press.

Wilbur, R. B. (1987). American Sign Language: Linguistic and applied dimensions (2nd ed.). Boston, MA: College Hill.