APA (7 वां संस्करण) प्रशस्ति पत्र

Singh, P. (1985). Enivronmental pollution and management. Chugh.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Singh, Pramod. Enivronmental Pollution and Management. Allahabad: Chugh, 1985.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Singh, Pramod. Enivronmental Pollution and Management. Chugh, 1985.