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	1.		Non- symbiotic nitrogen fixation and organic matter in the tropics: Managing soil resources to meet the challenges to mankind symposia papers I / Transactions 12th International congress of soil science Material type: Text; Format: print ; Literary form: Not fiction Publication details: New Delhi: 12th International Congress of Soil Science, 1982 Availability: Items available for reference: National Science Library: Not for loan (1)Call number: I 631.4(082.2) M2.2. Add to cart (remove)
	2.		Vertisols and rice soils of the tropics: Managing soil resources to meet the challenges to mankind symposia papers II / Transactions 12th International congress of soil science Material type: Text; Format: print ; Literary form: Not fiction Publication details: New Delhi: 12th International Congress of Soil Science, 1982 Availability: Items available for reference: National Science Library: Not for loan (1)Call number: I 631.4(082.2) M2.3. Add to cart (remove)
	3.		Desertification and soils policy: Managing soil resources to meet the challenges to mankind symposia papers III / Transactions 12th International congress of soil science Material type: Text; Format: print ; Literary form: Not fiction Publication details: New Delhi: 12th International Congress of Soil Science, 1982 Availability: Items available for reference: National Science Library: Not for loan (1)Call number: 631.4(082.2) M2.4. Add to cart (remove)
	4.		Managing soil resources: Managing soil resources to meet the challenges to mankind plenary session papers / Transactions 12th International congress of soil science Material type: Text; Format: print ; Literary form: Not fiction Publication details: New Delhi: 12th International Congress of Soil Science, 1982 Availability: Items available for reference: National Science Library: Not for loan (1)Call number: I 630.4(082.2) M2.1. Add to cart (remove)