Economics and the design of small-farmer technology
Valdes Alberto and Dillon John .L, .
creator
text
Ames
Lowa State University Press
1979
eng
viii,371p ; .
Alberto , Valdes and John L.Dillon.
Agric, Economics
Small -Farmer
338.1 ICEA
0813819105
051005
20160121095244.0