TY  - BOOK
AU  - Owens,Robert E.
TI  - Language development: an introduction 
T2  - The Allyn & Bacon communication sciences and disorders
SN  - 9780132582520 (pbk.)
PY  - 2012///
CY  - Boston
PB  - Pearson
KW  - Language acquisition
N1  - Includes bibliographical references (p. 443-475) and indexes
ER  -