TY  - BOOK
AU  - Collier, David ,
AU  - Gerring, John,
TI  - Concepts and method in social science : : Tradition of giovanni sartori / 
SN  - 9780415775786
U1  - 300.1 
PY  - 2009///
CY  - Oxon
PB  - Routledge
KW  - Social sciences
ER  -