Hurford, J. (1999) Artificially growing a numeral system. In Jadranka Gvozdanovic, editor, Numeral Types and Changes Worldwide , pages 7--41.

Hurford, J. (1999) Artificially growing a numeral system. In Jadranka Gvozdanovic, editor, Numeral Types and Changes Worldwide, pages 7--41.

2002	-	Natural Language from Artificial Life - Kirby	::	67
		Hurford, J. (1999). Artificially growing a numeral system. In J. Gvozdanovic (Ed.), Numeral Types and Changes Worldwide, pp. 7-41. Mouton de Gruyter.
1997	-	Simulated Evolution of Language and Language Processors - Beaver	::	1
		[9] James Hurford, to appear. "Artificially growing a numeral system", in Jadranka Gvozdanovic (ed.), The history of numeral systems.