Cita APA

Greg Harvey. (1990). Wordperfect 5.1 instant reference. Singapore: Tech Publications.

Chicago Style Citation

Greg Harvey. Wordperfect 5.1 Instant Reference. Singapore: Tech Publications, 1990.

Cita MLA

Greg Harvey. Wordperfect 5.1 Instant Reference. Singapore: Tech Publications, 1990.

Atenció: Aquestes cites poden no estar 100% correctes.