Cite

[Drawings of two classical figures, one male and one female] [art original].

MLA

[Drawings of Two Classical Figures, One Male and One Female] [Art Original]. 0AD. https://collections.library.yale.edu/catalog/16873231.

APA, 6th edition

[Drawings of two classical figures, one male and one female] [art original]. (0 C.E.). [Ink drawings 18th century, Graphite drawings 18th century]. https://collections.library.yale.edu/catalog/16873231.