Hoff, Erika, Language development / Erika Hoff. - 3rd ed. - Belmont, CA : Wadsworth/Thomson Learning, c2005. - xvii, 492 p. : ill. ; Includes bibliographical references (p. 423-475) and index. ISBN: 0534641709 Subjects--Topical Terms: Language acquisition. Dewey Class. No.: 401.93 HOF