TY  - BOOK
AU  - Vallier,Ivan
AU  - Apter,David E.
TI  - Comparative methods in sociology: essays on trends and applications 
SN  - 0520017439
AV  - H61 .V33
U1  - 301 
PY  - 1971///
CY  - Berkeley
PB  - University of California Press
KW  - Social sciences
KW  - Methodology
N1  - Bibliography: p. [423]-467
ER  -