TY  - BOOK
AU  - Das,D.K. Lal
TI  - Designs of social research 
SN  - 9788170339847
U1  - 001.42 
PY  - 2008///
CY  - jaipur: 
PB  - Rawat Publication, 
KW  - Computer Science
KW  - Elaboration
KW  - Social data
ER  -