APA (7th ed.) Citation

(1991). Turbo Pascal version 6.0: User's guide. Borland International.

Chicago Style (17th ed.) Citation

Turbo Pascal Version 6.0: User's Guide. Scotts valley, CA: Borland International, 1991.

MLA (9th ed.) Citation

Turbo Pascal Version 6.0: User's Guide. Borland International, 1991.