Cita APA (7a ed.)

Knecht, K. (1993). Object Oriented Programming: Turbo Pascal and Object Professional (NULL.).

Cita Chicago Style (17a ed.)

Knecht, Ken. Object Oriented Programming: Turbo Pascal and Object Professional. NULL. New Jersey, 1993.

Cita MLA (8a ed.)

Knecht, Ken. Object Oriented Programming: Turbo Pascal and Object Professional. NULL. 1993.