TY  - BOOK
AU  - Frankfort-Nachmias Chava
AU  -  Nachmias David
TI  - Research methods in  the social sciences
SN  - 0-312-10159-7
PY  - 1996///
CY  - New York, USA
PB  - St. Martin's  Press 
KW  - Research methods-social sciences
ER  -