APA (7th ed.) Citation

Que Development Group. (1992). Using WordPerfect 6 (Special ed.). Que Corporation.

Chicago Style (17th ed.) Citation

Que Development Group. Using WordPerfect 6. Special ed. Carmel, Ind: Que Corporation, 1992.

MLA (9th ed.) Citation

Que Development Group. Using WordPerfect 6. Special ed. Que Corporation, 1992.

Warning: These citations may not always be 100% accurate.