Trích dẫn APA

Vyas N G & Surendran Nair C. (2002). Methods to increase the efficiency of rajphos (jamarkhotra rockphosphate) in the black soils of Palakkad district for rice. Department of Soil Science and Agriculture, College of Agriculture.

Trích dẫn kiểu Chicago

Vyas N G và Surendran Nair C. Methods to Increase the Efficiency of Rajphos (jamarkhotra Rockphosphate) in the Black Soils of Palakkad District for Rice. Vellayani: Department of Soil Science and Agriculture, College of Agriculture, 2002.

Trích dẫn MLA

Vyas N G và Surendran Nair C. Methods to Increase the Efficiency of Rajphos (jamarkhotra Rockphosphate) in the Black Soils of Palakkad District for Rice. Department of Soil Science and Agriculture, College of Agriculture, 2002.

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