Style de citation APA (7e éd.)

Purtill, R. L. (1984). J. R. R. Tolkien - myth, morality, and religion (1. ed.). Harper Row.

Style de citation Chicago (17e éd.)

Purtill, Richard Lawrence. J. R. R. Tolkien - Myth, Morality, and Religion. 1. ed. San Francisco u.a: Harper Row, 1984.

Style de citation MLA (8e éd.)

Purtill, Richard Lawrence. J. R. R. Tolkien - Myth, Morality, and Religion. 1. ed. Harper Row, 1984.