APA (7th ed.) Citation

Covey, S. R. (1987). Quattro Pro ver. 2.0: User's guide. Borland International, 1987.

Chicago Style (17th ed.) Citation

Covey, Stephen R. Quattro Pro Ver. 2.0: User's Guide. Borland International, 1987, 1987.

MLA (8th ed.) Citation

Covey, Stephen R. Quattro Pro Ver. 2.0: User's Guide. Borland International, 1987, 1987.

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