Ellman, A. O. Agricultural improvement through co-operative farming in Tanzania: a brief outline, A. O. Ellman. - Dar es Salaam University College of Dar es Salaam 1969 - 10p. ;33cm. - . Subjects--Topical Terms: Agricultural developmentTanzania Co-operation Farming LC Class. No.: EAF QTO HD87.E3 No.69.23