APA (7 वां संस्करण) प्रशस्ति पत्र

Singh, A. (2019). Textbook on Law of Contract and Specific Relief (7th.). Eastern Book Company.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Singh, Avtar. Textbook on Law of Contract and Specific Relief. 7th. Lucknow: Eastern Book Company, 2019.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Singh, Avtar. Textbook on Law of Contract and Specific Relief. 7th. Eastern Book Company, 2019.