Joseph, B. D. , Mufwene, S. S. , Atkinson, Q. D. , Meade, A. , Venditti, C. , Greenhill, S. J. , and Pagel, M. (2008) Parsing the Evolution of Language. Science , 320(5875):446.

1. Henry Louis Mencken, The American Language (A. A. Knopf, New York, 1921).	Google
2. P. K. Longmore, J. Interdisciplinary History 37, 513 (2007).	Google