APA (7th ed.) Citation

Duffy, C. A. (1994). Selected poems (1. publ., 2. [printing].). Penguin.

Chicago Style (17th ed.) Citation

Duffy, Carol Ann. Selected Poems. 1. publ., 2. [printing]. London u.a: Penguin, 1994.

MLA (9th ed.) Citation

Duffy, Carol Ann. Selected Poems. 1. publ., 2. [printing]. Penguin, 1994.