Cita APA (7th ed.)

Harmer, J. (1989). Meridian: Student's book 1. Longman.

Cita Chicago (17th ed.)

Harmer, Jeremy. Meridian: Student's Book 1. England: Longman, 1989.

Cita MLA (9th ed.)

Harmer, Jeremy. Meridian: Student's Book 1. Longman, 1989.