Celine Arnauld. “Prospectus Projecteur.” 21 mai 1920. [2011-1]
MLA
Celine Arnauld. “Prospectus Projecteur.” 21 Mai 1920. [2011-1]. 1920. https://collections.library.yale.edu/catalog/10651521.
APA, 6th edition
Celine Arnauld. “Prospectus Projecteur.” 21 mai 1920. [2011-1]. (1920). [Scrapbooks]. https://collections.library.yale.edu/catalog/10651521.