Cite

Hélion, Jean, 1904-1987

MLA

Steinberg, Saul, 1914-1999. Hélion, Jean, 1904-1987. Box 21, folder 401-403. 1957-1988, undated. https://collections.library.yale.edu/catalog/10000044.

APA, 6th edition

Steinberg, Saul, 1914-1999. (["Box 21, folder 401-403"])(1957-1988, undated)[Hélion, Jean, 1904-1987]. https://collections.library.yale.edu/catalog/10000044.