The African republic of Liberia and the Belgian Congo : based on the observations made and material collected during the Harvard African expedition, 1926-1927 / edited by Richard P. Strong.
(Contributions from the Department of Tropical Medicine and the Institute for Tropical Biology and Medicine ; no. 5)
v. 1. The African republic of Liberia. Medical and pathological investigations in Liberia and the Belgian Congo. Medical and biological investigations...