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Successful irrigation; planning, development, management Robert M. Hagan, Clyde E. Houston, Stephen V. Allison.
- 631.587 H1412
- Hagan, Robert Mower,
- Food and Agriculture Organization of the United Nations,
- 1968.
- Rome,
-
Pollution: an international problem for fisheries.
- 363.7394 F6861
- Food and Agriculture Organization of the United Nations. Fishery Resources Division.
- Food and Agriculture Organization of the United Nations,
- c 1971.
- Rome,