Gaspar, the Strong Man: Film-Play (From "Gaspar-Ruiz")
MLA
Conrad, Joseph, 1857-1924. Gaspar, the Strong Man: Film-Play (From "Gaspar-Ruiz"). Box 7. 1920. https://collections.library.yale.edu/catalog/16632400.
APA, 6th edition
Conrad, Joseph, 1857-1924. (["Box 7"])(1920)[Gaspar, the Strong Man: Film-Play (From "Gaspar-Ruiz")]. https://collections.library.yale.edu/catalog/16632400.