Cite

Great mound at Grave Creek, Fig. 56

MLA

Orr, John William, 1815-1887. Great mound at Grave Creek, Fig. 56. https://collections.library.yale.edu/catalog/2000565.

APA, 6th edition

Orr, John William, 1815-1887. [Great mound at Grave Creek, Fig. 56]. https://collections.library.yale.edu/catalog/2000565.