APA (7th ed.) Zitazioa

Hughes, J. (2016). Keynote: Advanced. Teacher's Book (1a. ed.). National Geographic Learning.

Chicago Style (17th ed.) Zitazioa

Hughes, John. Keynote: Advanced. Teacher's Book. 1a. ed. Hampshire: National Geographic Learning, 2016.

MLA (9th ed.) Zitazioa

Hughes, John. Keynote: Advanced. Teacher's Book. 1a. ed. National Geographic Learning, 2016.