Farming systems research and development
guidelines for Developing Countries
text
u
Colorado
Westview Press Inc.
c1992
monographic
xviii,414p. ill. 28cm.
W.W.Shaner, P.F. Philipp [and] W.R.Schmehl
Include indexs
Agriculture
Research
Developing Countries
Agriculture
systems
Developing Countrie
Agriculture
Developing Countries
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