APA (7th ed.) Zitazioa

Binham, P., & Philip, B. (1977). Executive english: Book-2. Longman.

Chicago Style (17th ed.) Zitazioa

Binham, Philip, eta Binham Philip. Executive English: Book-2. London: Longman, 1977.

MLA (9th ed.) Zitazioa

Binham, Philip, eta Binham Philip. Executive English: Book-2. Longman, 1977.