Cita APA (7a ed.)

Emery, S., & Mackie, G. S. (2001). Link: Course book : intermediate.

Cita Chicago Style (17a ed.)

Emery, Sue, y Gill Stephens Mackie. Link: Course Book : Intermediate. Atenas, 2001.

Cita MLA (9a ed.)

Emery, Sue, y Gill Stephens Mackie. Link: Course Book : Intermediate. 2001.