MLA

August Schmelzer Company (Meriden, Connecticut). Veranda, Untercliff Sanitoriam (Undercliff Sanatorium). Meriden Connecticut. box 1, folder 6. circa 1914. https://collections.library.yale.edu/catalog/15789420.

APA, 6th edition

August Schmelzer Company (Meriden, Connecticut). (["box 1, folder 6"])(circa 1914)[Veranda, Untercliff Sanitoriam (Undercliff Sanatorium). Meriden Connecticut]. https://collections.library.yale.edu/catalog/15789420.