Cite

Spray exhibit showing use of Black Leaf 40 (nicotine)

MLA

Spray Exhibit Showing Use of Black Leaf 40 (Nicotine). 0AD. https://collections.library.yale.edu/catalog/17116237.

APA, 6th edition

Spray exhibit showing use of Black Leaf 40 (nicotine). (0 C.E.). [Photographs (AAT)]. https://collections.library.yale.edu/catalog/17116237.