TY  - BOOK
AU  - Gerring, John,
TI  - Social science methodology: a unified framework 
T2  - Strategies for social inquiry
SN  - 9780521115049 (hbk.)
U1  -  300.72  22
PY  - 2012///
CY  - Cambridge,  New York
PB  - Cambridge University Press
KW  - Social sciences
KW  -  Methodology
N1  - Includes bibliographical references (p. 444-491) and index
ER  -