Gregorius

MLA

HARTMANN VON AUE, Bayard Quincy Morgan, and Edwin H Zeydel. Gregorius. University of North Carolina Press, 1955.

APA

HARTMANN VON AUE, H. VON AUE, Morgan, B. Quincy, & Zeydel, E. H. (1955). Gregorius. University of North Carolina Press.

Chicago

HARTMANN VON AUE, Bayard Quincy Morgan, and Edwin H Zeydel. Gregorius. : University of North Carolina Press, 1955.