TY  - BOOK
AU  - Kerlinger Fred N
TI  - Behavioral research :  A conceptual approach
U1  - SN1:f, L9--;1 
PY  - 1979///
CY  - New York
PB  - Holt      
KW  - PSYCHOLOGY
N1  - Bibliography  p 320--325; Appendix  p306--319
ER  -