Umali, Dina L. Public and private agricultural extension : beyond traditional fr ontiers / Dina L. Umali, Lisa Schwartz. - Washington, D. C. : World Bank, 1994. - xiv, 82 p. ; 27 cm. - World Bank Discussion papers ; 236 . Includes bibliographical references. ISBN: 0821328034 : £21.00 Subjects--Topical Terms: Agricultural extension work.Agricultural extension work--Economic aspects. Dewey Class. No.: 630.715