TY  - BOOK
AU  - Crain, William C
TI  - Theories of development: concepts and applications.
SN  - 0139136339
U1  - 155.4 
PY  - 1985///
CY  - London
PB  - Prentice-Hall International
KW  - Psychology
N1  - Includes bibliographical references P.271-85
ER  -