APA (7th ed.) Citation

Menner, R. J. (1920). Purity: A middle English poem. Yale Univ. Press [u.a.].

Chicago Style (17th ed.) Citation

Menner, Robert J. Purity: A Middle English Poem. New Haven: Yale Univ. Press [u.a.], 1920.

MLA (9th ed.) Citation

Menner, Robert J. Purity: A Middle English Poem. Yale Univ. Press [u.a.], 1920.

Warning: These citations may not always be 100% accurate.