Cite

Tetrarchia ducatus Gelriæ Ruræmundensis.

MLA

Tetrarchia Ducatus Gelriæ Ruræmundensis. 0AD. https://collections.library.yale.edu/catalog/15352302.

APA, 6th edition

Tetrarchia ducatus Gelriæ Ruræmundensis. (0 C.E.). [Maps]. https://collections.library.yale.edu/catalog/15352302.