-
1
-
2Extensión in the Andes; an evaluation of official U.S. Assistance to agricultural extension services in Central and South America / Extensión in the Andes; an evaluation of official U.S. Assistance to agricultural extension services in Central and South America /by Rice, E.B.
Published 1974Texto bibliotecaCOLPOS -
3
-
4
-
5
-
6
-
7Book bibliotecaCIMMYT
-
8Book bibliotecaCIMMYT
-
9Texto bibliotecaFAO IT
-
10
-
11