APA (7th ed.) Citation

Hartmann, v. A., Zeydel, E. H., & Morgan, B. Q. (1955). Gregorius: A Medieval Oedipus Legend. University of North Carolina Press.

Chicago Style (17th ed.) Citation

Hartmann, von Aue, Edwin H. Zeydel, and Bayard Quincy Morgan. Gregorius: A Medieval Oedipus Legend. Chapel Hill: University of North Carolina Press, 1955.

MLA (9th ed.) Citation

Hartmann, von Aue, et al. Gregorius: A Medieval Oedipus Legend. University of North Carolina Press, 1955.