The seeds of speech : language origin and evolution / Jean Aitchison. Aitchison, Jean, 1938- Language and languages Origin. Language acquisition. Linguistic change. 401 AIS Includes bibliographical references (p. 245-267) and index. Cambridge [England] ; New York, NY, USA : Cambridge University Press, 1996. 1996. 1996 Text xii, 281 p. : http://www.loc.gov/catdir/description/cam027/95047738.html http://www.loc.gov/catdir/toc/cam024/95047738.html eng Cambridge approaches to linguistics