APA استشهاد

Empson, W. (1977). Seven types of ambiguity (3rd ed.). Chatto and Windus.

استشهاد بنمط شيكاغو

Empson, William. Seven Types of Ambiguity. 3rd ed. London: Chatto and Windus, 1977.

MLA استشهاد

Empson, William. Seven Types of Ambiguity. 3rd ed. Chatto and Windus, 1977.