TY  - BOOK
AU  - Blalock,Hubert M.
AU  - Blalock,Ann B.
TI  - Methodology in social research
T2  - McGraw-Hill series in sociology
AV  - H62 .B58 1968
PY  - 1968///]
CY  - New York 
PB  - McGraw-Hill 
KW  - Social sciences
KW  - Methodology
KW  - Research
N1  - Includes bibliographies
ER  -