TY  - BOOK
AU  - Singh S.P.
TI  - Research methods in social science:  A manual for designing questionnaires.   
SN  - 8173914834
U1  - Sigma b4, P2 
PY  - 2002///
CY  -  New Delhi 
PB  - Kanishka Publishers        
KW  - Economics
N1  - Bibliography: P 260-65; Appendix: P 145-54; Glossary: P 255-59
ER  -