APA (7th ed.) Zitazioa

Quarry, A. Communication 4: Overcoming negative behavior. Learning Resource.

Chicago Style (17th ed.) Zitazioa

Quarry, Ash. Communication 4: Overcoming Negative Behavior. Mobray: Learning Resource.

MLA (9th ed.) Zitazioa

Quarry, Ash. Communication 4: Overcoming Negative Behavior. Learning Resource.