Herschensohn Julia Language development and age - New York Cambridge University Press U.S.A 2007 - xiv, 289p. cm. ISBN: 9780521872973 (hbk) 3795.55 Standard No.: 94606 Source: 8253, 21/01/2009, Elite Publishers Distributors Textual Subjects--Topical Terms: EDUCATION Dewey Class. No.: T:3(P), P7