Ervin Tripp Susan M Language acquisition and communicative choice essays Ervin Tripp Susan M - Standford Standford Univ Press 1973 - xiv,384p. tables cm. - language science and national development ed by Anwar S Dil . Standard No.: 50,869 Source: Textual Subjects--Topical Terms: LINGUISTICS Dewey Class. No.: P:(S), L32;1