Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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