MLA

Jong, Jacqueline de, 1939-. "Development of the Situation of the Situationist Times from 1962 untill today", draft, typescript. Box 20, folder 441. undated. https://collections.library.yale.edu/catalog/16721099.

APA, 6th edition

Jong, Jacqueline de, 1939-. (["Box 20, folder 441"])(undated)["Development of the Situation of the Situationist Times from 1962 untill today", draft, typescript]. https://collections.library.yale.edu/catalog/16721099.