TY  - BOOK
AU  - Kerlinger,Fred N.
TI  - Foundations of behavioral research : : educational and psychological inquiry 
U1  - 150.72 21
PY  - 1964///]
CY  - New York : 
PB  - Holt, Rinehart and Winston
KW  - Psychology
KW  - Research
KW  - Educational psychology
N1  - Includes bibliographical references; المحتويات :
ER  -