APA (7th ed.) Zitazioa

Clandfield, L. (2006). Straightforward: Elementary. Student's book (1a. ed.). Macmillan Education.

Chicago Style (17th ed.) Zitazioa

Clandfield, Lindsay. Straightforward: Elementary. Student's Book. 1a. ed. Oxford: Macmillan Education, 2006.

MLA (9th ed.) Zitazioa

Clandfield, Lindsay. Straightforward: Elementary. Student's Book. 1a. ed. Macmillan Education, 2006.