"Die Philosophie der Griechen" [Sommer-Semester]: draft, holograph, corrected (Envelope #112)
MLA
Cassirer, Ernst, 1874-1945. "Die Philosophie der Griechen" [Sommer-Semester]: draft, holograph, corrected (Envelope #112). Box 47, folder 928-29. 1910. https://collections.library.yale.edu/catalog/17479006.
APA, 6th edition
Cassirer, Ernst, 1874-1945. (["Box 47, folder 928-29"])(1910)["Die Philosophie der Griechen" [Sommer-Semester]: draft, holograph, corrected (Envelope #112)]. https://collections.library.yale.edu/catalog/17479006.