TY  - BOOK
AU  - Paul J. Lavrakas Ed.
TI  - Encyclopedia of survey research methods
SN  - 9781412918084 (hbk)
U1  - Sigma:fk, P8.1-.2(RR) 
PY  - 2008///
CY  - Los
PB  - Angeles Sage USA    
KW  -  RESEARCH METHODS
KW  - SOCIAL SCIENCES
ER  -