International Symposium on Soil Fertility Evaluation New Delhi, India. (1971). International Symposium on Soil Fertility Evaluation proceedings. Indian Society of Soil Science Indian Agricultural Research Institute.
Citace podle Chicago (17th ed.)International Symposium on Soil Fertility Evaluation New Delhi, India. International Symposium on Soil Fertility Evaluation Proceedings. New Dehli: Indian Society of Soil Science Indian Agricultural Research Institute, 1971.
Citace podle MLA (8th ed.)International Symposium on Soil Fertility Evaluation New Delhi, India. International Symposium on Soil Fertility Evaluation Proceedings. Indian Society of Soil Science Indian Agricultural Research Institute, 1971.
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