"The Development of the Modern Concept of Nature in the Philosophy and Science of the Renaissance": draft, holograph, corrected (Envelope #34)
MLA
Cassirer, Ernst, 1874-1945. "The Development of the Modern Concept of Nature in the Philosophy and Science of the Renaissance": draft, holograph, corrected (Envelope #34). Box 38, folder 748-49. n.d.. https://collections.library.yale.edu/catalog/16871542.
APA, 6th edition
Cassirer, Ernst, 1874-1945. (["Box 38, folder 748-49"])(n.d.)["The Development of the Modern Concept of Nature in the Philosophy and Science of the Renaissance": draft, holograph, corrected (Envelope #34)]. https://collections.library.yale.edu/catalog/16871542.