Empson, W. (1995). Seven types of ambiguity. Penguin Books in association with Chatto and Windus.
Citação norma ChicagoEmpson, William. Seven Types of Ambiguity. Harmondsworth, Middlesex: Penguin Books in association with Chatto and Windus, 1995.
Citação norma MLAEmpson, William. Seven Types of Ambiguity. Penguin Books in association with Chatto and Windus, 1995.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.