Liebrman Philip On the origins of language an introduction to the evolution of human speech Liebrman Philip - New York Macmillan 1975 - viii,196p. illus cm. - Macmillan series in physical anthropology . Bib 183-89p Standard No.: 45,770 Source: Textual Subjects--Topical Terms: LINGUISTICS Dewey Class. No.: Pv, L51