Cite

Wilder and group at the Cafe Rosado, Guayaquil, signed by the attendees, including Abel Romero Castillo

MLA

Wilder, Thornton, 1897-1975. Wilder and group at the Cafe Rosado, Guayaquil, signed by the attendees, including Abel Romero Castillo. Box 150, folder 3581. 1941 May 6. https://collections.library.yale.edu/catalog/2109034.

APA, 6th edition

Wilder, Thornton, 1897-1975. (["Box 150, folder 3581"])(1941 May 6)[Wilder and group at the Cafe Rosado, Guayaquil, signed by the attendees, including Abel Romero Castillo]. https://collections.library.yale.edu/catalog/2109034.