एपीए उद्धरण

Cassel, D. (1990). Learning Dos, word perfect 5.0, lotus1-2-3, and d base III plus. Prenticehall.

शिकागो स्टाइल उद्धरण

Cassel, Don. Learning Dos, Word Perfect 5.0, Lotus1-2-3, and D Base III Plus. New Jersey: Prenticehall, 1990.

एमएलए उद्धरण

Cassel, Don. Learning Dos, Word Perfect 5.0, Lotus1-2-3, and D Base III Plus. Prenticehall, 1990.