Cite

Sofiya and Istambul (Constantinople).

MLA

Sofiya and Istambul (Constantinople). s.n., 191AD. https://collections.library.yale.edu/catalog/15238070.

APA, 6th edition

Sofiya and Istambul (Constantinople). (191 C.E.). [Maps]. s.n., https://collections.library.yale.edu/catalog/15238070.