Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (8th ed.)

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