Karel de Grote.

MLA

Fleckenstein, Joachim Otto, and Wybe Jappe Alberts. Karel De Grote. 3e ed. Den Haag: Kruseman, 1975.

APA

Fleckenstein, J. Otto, & Jappe Alberts, W. (1975). Karel de Grote. 3e ed. Den Haag: Kruseman.

Chicago

Fleckenstein, Joachim Otto. Karel De Grote. Translated by Wybe Jappe Alberts. 3e ed. Den Haag: Kruseman, 1975.