TY  - BOOK
AU  - Blalock,Hubert M.
TI  - Causal models in the social sciences / 
U1  - MISR 300.18 BLA 
PY  - 1971///
CY  - London : 
PB  - Macmillan, 
KW  - Social sciences
KW  - Methodology
KW  - Research
KW  - Models (Research methodology)
N1  -  Includes bibliographical references
ER  -