a manual for A.I.D. agricultural and rural development officers Abt Associates Robert R. Nathan Associates Abel, Daft, & Earley United States text Washington, D.C U.S. Agency for International Development 1989 monographic ix, 43, [48] p. ; 28 cm "February 1989." "PN-AAX-215"--Cover Agriculture and state Agriculture Agricultural assistance Agricultural development projects Agricultural extension workers 338 USA 1989 C140 Or.