Tropical medicine and hygiene in Tanganyika Territory. Nineteen years in the Colonial Medical Service.
Calwell
H G
HG
D049673:History, 20th Century; D006920:Hygiene / Q000266:history*; D013636:Tanzania; D014330:Tropical Medicine / Q000266:history*; D014353:Trypanosomiasis, African / Q000266:history