APA (7th ed.) Citation

(1988). Turbo C: User's guide version 2.0. Borland International.

Chicago Style (17th ed.) Citation

Turbo C: User's Guide Version 2.0. Scotts Valley: Borland International, 1988.

MLA (9th ed.) Citation

Turbo C: User's Guide Version 2.0. Borland International, 1988.