Cita APA (7th ed.)

(1973). Focus on the learner: Pragmatic perspectives for the language teacher / edited by: John W. Oller, Jr., Jack C. Richards.

Cita Chicago (17th ed.)

Focus on the Learner: Pragmatic Perspectives for the Language Teacher / Edited by: John W. Oller, Jr., Jack C. Richards. 1973.

Cita MLA (9th ed.)

Focus on the Learner: Pragmatic Perspectives for the Language Teacher / Edited by: John W. Oller, Jr., Jack C. Richards. 1973.