Appropriate Technologies for Developing Countries
Eckaus, Richard S.
Appropriate Technologies for Developing Countries - Washington : National Academy of Science, 1977. - xiii, 140p.; 23cm
0309026024
E.L Wijemanna Collection
Production
338.9 / ECK
Appropriate Technologies for Developing Countries - Washington : National Academy of Science, 1977. - xiii, 140p.; 23cm
0309026024
E.L Wijemanna Collection
Production
338.9 / ECK