TY  - BOOK
T1  - Epidemiology for public health practice
A1  - Friis, Robert H.
A2  - Sellers, Thomas A.
LA  - English
PP  - Gaithersburg, MD
PB  - Aspen
YR  - 1999
ED  - 2nd ed.
UL  - https://tuklas.up.edu.ph/Record/UP-1685523046125357984
OP  - 506
CN  - RA651 F686 1999
SN  - 0834211785
KW  - Epidemiology.
KW  - Public health personnel.
KW  - Public Health.
ER  -