TY  - BOOK
AU  - Porta, Donatela della  ed.
TI  - Approaches and methodlogies in the social sciences : a pluralist perspective 
SN  - 978 0 521 70966 8
U1  - 300 72 APP 
PY  - 2008///
CY  - Cambridge 
PB  -  Cambridge University Press
KW  - SOCIAL SCIENCES RESEARCH METHODOLOGY
ER  -