एपीए उद्धरण

David Karlins. (1999). Corel Draw 9 in 24 hours. Techmedia.

शिकागो स्टाइल उद्धरण

David Karlins. Corel Draw 9 in 24 Hours. New Delhi: Techmedia, 1999.

एमएलए उद्धरण

David Karlins. Corel Draw 9 in 24 Hours. Techmedia, 1999.