TY  - BOOK
ED  - edited by Blalock, Hubert  M.
ED  - edited by Bhalok, Ann B.
TI  - Methology in social  research. 
T2  - Mc Graw-Hill series in sociology
U1  - 301.018 
PY  - 1968///
CY  - New York
PB  - Mc Graw-Hill  Book
KW  - Sociology--Research
KW  - Social research
ER  -