Global aspects of food production
1986
Swaminathan, M. S. |
Sinha, S. K. |
Natural Resources and the Environment Series
Ecology in practice
1984
Di Castri, Francesco |
Baker, F. W. G. |
Hadley, M. |
The world environment 1972 -1982 : a report
1982
Holdgate, Martin W. |
Kassas, Mohammed |
White, Gilbert F. |
Development without destruction : evolving environmental perceptions
1984
Tolba, Mostafa Kamal |