Delhi, F. A. N. (1973). Fertilisers in India in the seventies: Proceedings of the seminar held in December 18-19, 1972. F.A.I.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDelhi, Fertiliser Association. New. Fertilisers in India in the Seventies: Proceedings of the Seminar Held in December 18-19, 1972. F.A.I, 1973.
एमएलए (9वां संस्करण) प्रशस्ति पत्रDelhi, Fertiliser Association. New. Fertilisers in India in the Seventies: Proceedings of the Seminar Held in December 18-19, 1972. F.A.I, 1973.
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