एपीए उद्धरण

Nagpal, A. (2003). ALE, EDI & IDoc technologies for SAP (2nd ed.). Prentice-Hall of India.

शिकागो स्टाइल उद्धरण

Nagpal, Arvind. ALE, EDI & IDoc Technologies for SAP. 2nd ed. New Delhi: Prentice-Hall of India, 2003.

एमएलए उद्धरण

Nagpal, Arvind. ALE, EDI & IDoc Technologies for SAP. 2nd ed. Prentice-Hall of India, 2003.