Cita APA (7a ed.)

Empson, W. (1995). Seven types of ambiguity. Penguin Books in association with Chatto and Windus.

Cita Chicago Style (17a ed.)

Empson, William. Seven Types of Ambiguity. Harmondsworth, Middlesex: Penguin Books in association with Chatto and Windus, 1995.

Cita MLA (8a ed.)

Empson, William. Seven Types of Ambiguity. Penguin Books in association with Chatto and Windus, 1995.