TY  - BOOK
AU  - Kerlinger,Fred N., x
AU  - x
TI  - Foundations behavioral research: x
SN  - x     
U1  - 507/KEF 
PY  - 1978///
CY  - Delhi
PB  - Surjeet 
KW  - Science-study and teaching
KW  - Science-research
ER  -