TY  - GEN
AU  - Ragin, Charles C.
AU  - Amoroso, Lisa M.    
TI  - Constructing social research: the unity and diversity of method
SN  - 9781412960182
U1  - 300.72 
PY  - 2011///
CY  - London
PB  - Sage Publication Ltd
KW  - SOCIAL SCIENCES-RESEARCH
ER  -