TY  - BOOK
AU  - Park, J. E.
AU  - Park, K.
TI  - Textbook of preventive and social medicine [12th ed.]
SN  - 8190011804
U1  - 614.44 
PY  - 1989///
CY  - India
PB  - Banarsidas Bhanot Pub.
KW  - Medicine
N1  - Includes index
ER  -