Saylor, R. G. A social cost / benefit analysis of the agricultural extension and research services in selected cotton growing areas of Western Tanzania R. G. Saylor - Dar es Salaam Economic Research Bureau 1970 - 20p. ill 32cm. Includes bibliographies reference Subjects--Topical Terms: Cotton growingFarm, Research, Tanzania, Western LC Class. No.: EAF QTO HC12.E3 Vol.4 No.70.24