TY  - GEN
AU  - Crano, William D.
AU  - Brewer, Marilynn B.
TI  - Principles and methods of social research
SN  - 0205086322
U1  - 300.72 
PY  - 1986///
CY  - London
PB  - Allyn & Bacon
KW  - SOCIAL SCIENCE
ER  -