Food crops in the low-income countries : the state of present and expected agricultural research and technology
by Cummings, Ralph Waldo.
Print Book 1976 |
... Agriculture Research Developing countries ... |
Ill fares the land : essays on food, hunger, and power
by George, Susan.
Print Book 1984 |
... Agriculture Research Developing countries ... |
Toward sustainability : soil and water research priorities for developing countries
Print Book 1991 |
... Sustainable agriculture Research Developing countries ... |