D'Hoore, J.L Soil map of Africa scale 1 to 5000000 : explanatory monograph / b J.L. D'Hoore. - 19. - 205 p. : ill., maps (col) ; 24 cm. - Publication ; no. 93 . Joint project no.11, Lagos 1964. Subjects--Topical Terms: Soils -- Addresses, essays, lectures.