TY  - BOOK
AU  - Ratan, Vidya
TI  - Viv in Preventive and social Medicine : (Hygiene and Public Health)
SN  - 81-7179-785-7
U1  - 614.44 
PY  - 2005///
CY  - New Delhi
PB  - Jaypee Brothers Medical Publishers
KW  - Medicine, Preventive
ER  -