MLA

Fanshawe, Catherine Maria, 1765-1834, artist. Ancient & modern pyramids. March 3d, 1787.. https://collections.library.yale.edu/catalog/10728281.

APA, 6th edition

Fanshawe, Catherine Maria, 1765-1834, artist. (March 3d, 1787.)[Ancient & modern pyramids]. https://collections.library.yale.edu/catalog/10728281.