TY  - BOOK
AU  - Blalock, Hubert M.
TI  - Methodology in social research
U1  - 300.108 BLA. B 
PY  - 1968///
CY  - New York : 
PB  - McGraw-Hill Book Comapny, 
KW  - Sociology
KW  - Methodology in social research
ER  -