TY  - BOOK
AU  - GUPTA, PIYUSH 
TI  - TEXT BOOK OF PREVENTIVE & SOCIAL MEDICINE 
SN  - 9788123919218
U1  - 613 
PY  - 2007///
CY  - NEW DELHI
PB  - CBS PUB. N.D.
KW  - PSM
ER  -