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3
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Methods of farm management investigations for improving farm productivity / prep. by W.Y. Yang.
- FAO,
- 1958.
- Rome :
-
Hybrid maize breeding and seed production / by Robert W. Jungenheimer.
- FAO,
- 1958.
- Rome :
-
Fuelwood plantations in India : an information paper / prep. by J.N. Sen Gupta.
- 856.1
- Food and Agriculture Organization of the United Nations,
- 1958.
- Rome :