"Nach der Natur im Spital zu Zürich gezeichnet." Pen-and-ink drawing of four heads, mounted with manuscript caption
MLA
Lavater, Johann Caspar, 1741-1801. "Nach der Natur im Spital zu Zürich gezeichnet." Pen-and-ink drawing of four heads, mounted with manuscript caption. Box 3 (Oversize), folder 44. 1779. https://collections.library.yale.edu/catalog/2057751.
APA, 6th edition
Lavater, Johann Caspar, 1741-1801. (["Box 3 (Oversize), folder 44"])(1779)["Nach der Natur im Spital zu Zürich gezeichnet." Pen-and-ink drawing of four heads, mounted with manuscript caption]. https://collections.library.yale.edu/catalog/2057751.