Dinar,, Ariel The cost and performance of paid agricultural extension services : the case of agricultural technology transfer in Nicaragua / Ariel Dinar, Gabriel Keynan

The cost and performance of paid agricultural extension services : the case of agricultural technology transfer in Nicaragua / Ariel Dinar, Gabriel Keynan . - Washington : World Bank, 1999 . - 33 p. : il. 28 cm . - (Policy research working paper; 1931))
338.43