Research, development, extension and the farmer:
Holmes, J.C.
Research, development, extension and the farmer: getting the most out of the system - 1978 - Printed
FAO-ACCESS.No.--42403; 1 ref
English
Development policies
79-451262
Research, development, extension and the farmer: getting the most out of the system - 1978 - Printed
FAO-ACCESS.No.--42403; 1 ref
English
Development policies
79-451262