Cita APA (7a ed.)

Andrews, S., & Templer, J. C. (1986). Practising for proficiency 2. Heinemann Educational Books.

Cita Chicago Style (17a ed.)

Andrews, Stephen, y J. C. Templer. Practising for Proficiency 2. Londres: Heinemann Educational Books, 1986.

Cita MLA (8a ed.)

Andrews, Stephen, y J. C. Templer. Practising for Proficiency 2. Heinemann Educational Books, 1986.