TY  - GEN
AU  - Blalock,  Ann B
AU  - Blalock,  Jr Hubert M
TI  - Methodology in social research
T2  - Mc Graw- Hill series in sociology
U1  - 300.72 BLA 
CY  - Newyork, Mc Graw- Hill Book Company Inc
KW  - Social research- Methodology/ Social stratification/ Simpling theory/ Correlation analysis/ Cultural anthropology
ER  -