APA Edition Citation

Kantorowicz, E. H. (1957). Frederick the second : 1194-1250 ; authorized English version by E.O. Lorimer: 1194-1250 ; authorized English version by E.O. Lorimer. Frederick Ungar.

Chicago Edition Citation

Kantorowicz, Ernst Hartwig. Frederick the Second : 1194-1250 ; Authorized English Version by E.O. Lorimer: 1194-1250 ; Authorized English Version by E.O. Lorimer. New York: Frederick Ungar, 1957.

MLA Edition Citation

Kantorowicz, Ernst Hartwig. Frederick the Second : 1194-1250 ; Authorized English Version by E.O. Lorimer: 1194-1250 ; Authorized English Version by E.O. Lorimer. Frederick Ungar, 1957.