TY  - BOOK
AU  - Das, D K Lal
AU  - Das,D K Lal
TI  - Designs of Social Research
SN  - 8170330335   
U1  - 001.42 
PY  - 2005///
CY  - Jaipur 
PB  - Rawat Publications 
KW  - Research Methods
N1  - includes index and biblioraphy
ER  -