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Towards a second green revolution : from chemical to new biological technologies in agriculture in the tropics : proceedings of the international meeting... / ed. by G.B. Marini-Bettòlo.
- Elsevier,
- 1987.
- Amsterdam [etc.] :
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Amazon jungle : green hell to red desert? : an ecological discussion of the environmental impact of the Highway construction program in the Amazon basin / R.J.A. Goodland and H.S. Irwin.
- 878.4
- Elsevier,
- 1975.
- Amsterdam [etc.] :