Cita APA

John & Liz Soars. (1989). Headway: Student's book : upper-intermediate. Oxford: Oxford University Press.

Citación estilo Chicago

John & Liz Soars. Headway: Student's Book : Upper-intermediate. Oxford: Oxford University Press, 1989.

Cita MLA

John & Liz Soars. Headway: Student's Book : Upper-intermediate. Oxford: Oxford University Press, 1989.

Precaución: Estas citas no son 100% exactas.