Cita APA (7a ed.)

Feibel, W. (1991). Turbo Pascal 6 DiskTutor (2nd ed.). Osborne-McGraw-Hill.

Cita Chicago Style (17a ed.)

Feibel, Werner. Turbo Pascal 6 DiskTutor. 2nd ed. Berkeley [etc.]: Osborne-McGraw-Hill, 1991.

Cita MLA (9a ed.)

Feibel, Werner. Turbo Pascal 6 DiskTutor. 2nd ed. Osborne-McGraw-Hill, 1991.