एपीए उद्धरण

Avtar Singh. (1992). The principles of mercantile law (4th ed.). Eastern book company.

शिकागो स्टाइल उद्धरण

Avtar Singh. The Principles of Mercantile Law. 4th ed. Lucknow: Eastern book company, 1992.

एमएलए उद्धरण

Avtar Singh. The Principles of Mercantile Law. 4th ed. Eastern book company, 1992.