TY  - GEN
AU  - Gupta , Piyush
AU  - Ghai , O.P.
TI  - Textbook of preventive and social medicine
SN  - 8123914571
U1  - 613 
PY  - 2007///
CY  - New Delhi
PB  - CBS Publishers
KW  - HEALTH PROMOTION
KW  - PREVENTIVE MEDICINE
KW  - MEDICINE
ER  -