Improving agricultural extension : a reference manual - Swanson, Burton E.; Bentz, Robert P.; Sofranko, Andrew J. (Rome : Food and Agriculture Organization of the United Nations, 2005)
Updated ed. of: Agricultural extension. 2nd ed. 1984.
"Prepared under the guidance of the Extension, Education, and Communication Service, Research, Extension, and Training Division, Sustainable Development Department."
"M-67."
Keywords: Agricultural extension work -- Handbooks, manuals, etc