MLA

Stenzel, Franz (1906-1998). "Cape Flattery Light House & Fog Signal, Tatoosh Island W.T." Pencil drawing with wash, 17.8 x 25.1 cm.. Box 8, folder 146. 1881 May. https://collections.library.yale.edu/catalog/2003223.

APA, 6th edition

Stenzel, Franz (1906-1998). (["Box 8, folder 146"])(1881 May)["Cape Flattery Light House & Fog Signal, Tatoosh Island W.T." Pencil drawing with wash, 17.8 x 25.1 cm.]. https://collections.library.yale.edu/catalog/2003223.