APA (7e ed.) Bronvermelding

Perkins, D., & Symbolism in literature. (1959). The quest for permanence: The symbolism of Wordsworth, Shelley, and Keats. Harvard University Press.

Chicago (17e ed.) Bronvermelding

Perkins, David, en Symbolism in literature. The Quest for Permanence: The Symbolism of Wordsworth, Shelley, and Keats. Cambridge: Harvard University Press, 1959.

MLA (9e ed.) Bronvermelding

Perkins, David, en Symbolism in literature. The Quest for Permanence: The Symbolism of Wordsworth, Shelley, and Keats. Harvard University Press, 1959.