TY  - BOOK
AU  - Khalil,F.I.
TI  - Essentials of public health / 
U1  - 614.44 
PY  - 1970///
CY  - Cairo
PB  - The Scientific Book Center, 
KW  - Medicine
KW  - Public health
KW  - Nutrition
KW  - Environmental health
KW  - Health education
ER  -