MLA

Stenzel, Franz (1906-1998). "Frontier Life in Washington Territory." Four wood engravings featured in Harper's Weekly (in Series II). Box 57, folder 1113. 1857 Aug 22. https://collections.library.yale.edu/catalog/2010752.

APA, 6th edition

Stenzel, Franz (1906-1998). (["Box 57, folder 1113"])(1857 Aug 22)["Frontier Life in Washington Territory." Four wood engravings featured in Harper's Weekly (in Series II)]. https://collections.library.yale.edu/catalog/2010752.