Agricultural extension :
Benor, Daniel
Agricultural extension : The training and visit system / Daniel Benor; James Q. Harrison - Washington: World Bank, 1977. - 55 p.
--AGRICULTURA --EXTENCIÓN AGRÍCOLA --QUÍMICA AGRICOLA
333.76 / B466
Agricultural extension : The training and visit system / Daniel Benor; James Q. Harrison - Washington: World Bank, 1977. - 55 p.
--AGRICULTURA --EXTENCIÓN AGRÍCOLA --QUÍMICA AGRICOLA
333.76 / B466