MLA

Lynes, George Platt, 1907-1955. Postcard: Mary Pickford in "Tess of the Storm Country", addressed to GPL by Max [Ewing?], 1933 Sep 5 (from: SII-49). Box 5, folder 88. ca. 1900-55. https://collections.library.yale.edu/catalog/17067746.

APA, 6th edition

Lynes, George Platt, 1907-1955. (["Box 5, folder 88"])(ca. 1900-55)[Postcard: Mary Pickford in "Tess of the Storm Country", addressed to GPL by Max [Ewing?], 1933 Sep 5 (from: SII-49)]. https://collections.library.yale.edu/catalog/17067746.