एपीए उद्धरण

Singh K P. (2015). An Introduction to digital resource descripition. Ess Ess Pub.

शिकागो स्टाइल उद्धरण

Singh K P. An Introduction to Digital Resource Descripition. New Delhi: Ess Ess Pub, 2015.

एमएलए उद्धरण

Singh K P. An Introduction to Digital Resource Descripition. Ess Ess Pub, 2015.