TY  - BOOK
AU  - Corbetta, Piergiorgio
AU  - Patrick, Bernard
TI  - Social Research : Theory, Methods and Techniques
SN  - 0-7619-7253-6
U1  - 300.72 
PY  - 2003///
CY  - London
PB  - Sage
KW  - Social Sciences
ER  -