Upadhyaya, P. (1985). Distribution and consumption of diesal oil in agriculture. Mittal Pubs.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रUpadhyaya, P.K. Distribution and Consumption of Diesal Oil in Agriculture. Mittal Pubs, 1985.
एमएलए (9वां संस्करण) प्रशस्ति पत्रUpadhyaya, P.K. Distribution and Consumption of Diesal Oil in Agriculture. Mittal Pubs, 1985.
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