APA (7th ed.) Citation

Hull, R. (1985). The language gap: How classroom dialogue fails. Methuen.

Chicago Style (17th ed.) Citation

Hull, Robert. The Language Gap: How Classroom Dialogue Fails. London: Methuen, 1985.

MLA (9th ed.) Citation

Hull, Robert. The Language Gap: How Classroom Dialogue Fails. Methuen, 1985.