APA (7th ed.) Citation

Keller, J. E. (1946). The exemplum in Spain. [s.n.].

Chicago Style (17th ed.) Citation

Keller, John E. The Exemplum in Spain. Chapel Hill: [s.n.], 1946.

MLA (9th ed.) Citation

Keller, John E. The Exemplum in Spain. [s.n.], 1946.