Harris, W.V The migratory locust / W.V. Harris. - Dar es Salaam : Government Printer, 1932. - 18 p. : ill. ; 24 cm. - Pamphlet ; no. 6 . Subjects--Topical Terms: Migratory locust --Ecology --Tanganyika.---- Gov. Doc. Class. No.: G EAT A31 (08) 7/6