TY  - BOOK
AU  - King,Walter Gaven
TI  - Vaccination in the tropics / 
PY  - 1920///
CY  - London : 
PB  - Tropical Diseases Bureau , 
KW  - Smallpox
KW  - Prevention
KW  - Diseases and hygiene
KW  - Vaccination
KW  - Tropics
ER  -