TY  - BOOK
AU  - Blalock,Hubert M.
TI  - Causal models in the social sciences / 
SN  - 0202303136
U1  - MISR 30.18 BLA 
PY  - 1985///]
CY  - New York : 
PB  - Aldine Pub. Co., 
KW  - Social sciences
KW  - Methodology
N1  -  Includes indexes;  Bibliography: p. 438-439
ER  -