एपीए उद्धरण

Cassel, D. (1990). Learning Dos, WordPerfect 4.2, Lotus 1-2-3, Twin and dBase III Plus. Englewood Cliffs, New Jersey: Prentice-Hall.

शिकागो स्टाइल उद्धरण

Cassel, Don. Learning Dos, WordPerfect 4.2, Lotus 1-2-3, Twin and DBase III Plus. Englewood Cliffs, New Jersey: Prentice-Hall, 1990.

एमएलए उद्धरण

Cassel, Don. Learning Dos, WordPerfect 4.2, Lotus 1-2-3, Twin and DBase III Plus. Englewood Cliffs, New Jersey: Prentice-Hall, 1990.