Cite

[Muscles of the leg] [art original].

MLA

[Muscles of the Leg] [Art Original]. 0AD. https://collections.library.yale.edu/catalog/17339730.

APA, 6th edition

[Muscles of the leg] [art original]. (0 C.E.). [Pen works, Ink drawings]. https://collections.library.yale.edu/catalog/17339730.