Cite

[Collection of drawings of heads and ornaments] [art original].

MLA

[Collection of Drawings of Heads and Ornaments] [Art Original]. 0AD. https://collections.library.yale.edu/catalog/16873232.

APA, 6th edition

[Collection of drawings of heads and ornaments] [art original]. (0 C.E.). [Ink drawings Italian 16th century, Ink drawings 18th century]. https://collections.library.yale.edu/catalog/16873232.