Cita APA (7a ed.)

(1974). Oral English: Some techniques for teaching. Information Center Service.

Cita Chicago Style (17a ed.)

Oral English: Some Techniques for Teaching. Washington, Estados Unidos: Information Center Service, 1974.

Cita MLA (9a ed.)

Oral English: Some Techniques for Teaching. Information Center Service, 1974.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.