APA (7th ed.) Citation

O'Brien, S. K. (1991). Turbo Pascal 6: The complete reference. Osborne/McGraw-Hill.

Chicago Style (17th ed.) Citation

O'Brien, Stephen K. Turbo Pascal 6: The Complete Reference. Berkeley: Osborne/McGraw-Hill, 1991.

MLA (9th ed.) Citation

O'Brien, Stephen K. Turbo Pascal 6: The Complete Reference. Osborne/McGraw-Hill, 1991.