Cita APA (7th ed.)

Graham, I. (1991). Object-oriented methods. Addison-Wesley.

Cita Chicago (17th ed.)

Graham, Ian. Object-oriented Methods. Wokingham, England, Reading, Mass: Addison-Wesley, 1991.

Cita MLA (9th ed.)

Graham, Ian. Object-oriented Methods. Addison-Wesley, 1991.