TY  - BOOK
AU  - Das D K Lal
TI  - Designs of Social Research
SN  - 9788170339847
U1  - 300.7 DAS 
PY  - 2015///
CY  - Jaipur
PB  - Rawat Publications
KW  -  das d k lal
KW  -  design
KW  - social research
ER  -