TY  - BOOK
AU  - Blalock Hubert M
TI  - Introduction to social research
T2  - Prentice-Hall general sociology series
SN  - 13496828X
U1  - Sigma b4, L0 
PY  - 1970///
CY  - Englewood
PB  - Cliffs New Jersey prentice-Hall       
KW  - Social Science
ER  -