West, M. (1963). Easy English dialogues: For Learning English as behaviour. Longman.
Chicago-viite (17. p.)West, Michael. Easy English Dialogues: For Learning English as Behaviour. London: Longman, 1963.
MLA-viite (9. p.)West, Michael. Easy English Dialogues: For Learning English as Behaviour. Longman, 1963.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.