APA (7 वां संस्करण) प्रशस्ति पत्र

Singh, A. (2000). Principles of mercantile law (7th ed.). Eastern book co..

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Singh, Avtar. Principles of Mercantile Law. 7th ed. Lucknow: Eastern book co., 2000.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Singh, Avtar. Principles of Mercantile Law. 7th ed. Eastern book co., 2000.