Cita APA (7th ed.)

Hornby, A. S. (1964). Oxford progressive english alterntive course: Book a teacher's handbook. U.pr..

Cita Chicago (17th ed.)

Hornby, A. S. Oxford Progressive English Alterntive Course: Book a Teacher's Handbook. London: U.pr., 1964.

Cita MLA (9th ed.)

Hornby, A. S. Oxford Progressive English Alterntive Course: Book a Teacher's Handbook. U.pr., 1964.