Cite

Thomson, Virgil [by George Platt Lynes]

MLA

Stein, Gertrude, 1874-1946. Thomson, Virgil [by George Platt Lynes]. Box 172, folder 4356. n.d.. https://collections.library.yale.edu/catalog/2011586.

APA, 6th edition

Stein, Gertrude, 1874-1946. (["Box 172, folder 4356"])(n.d.)[Thomson, Virgil [by George Platt Lynes]]. https://collections.library.yale.edu/catalog/2011586.