TY  - BOOK
AU  - Blalock, H M
TI  - Measurement in the social sciences : theories and strategies 
T2  - Methodological perspectives
SN  - 0202302725
AV  - H61 .B483
U1  - 300.1 22
PY  - 1974///
CY  - Chicago 
PB  - Aldine Pub. Co
KW  - Social sciences
KW  - Methodology
N1  - Includes indexes; Bibliography: p. 455
ER  -