Enlace original:
https://cgspace.cgiar.org/handle/10568/54225
Davis, J.H.C.
,
Smithson, James Brady
,
Arregocés, Oscar
,
[Study guide to be used as a supplement to the audiotutorial unit on the same topic]
,
[Principles of intercropping with beans]
,
Principles of intercropping with beans