"Chapter III. Pythagoras and the Pythagoreans": draft, holograph, corrected (pp. 1-51a)
MLA
Cassirer, Ernst, 1874-1945. "Chapter III. Pythagoras and the Pythagoreans": draft, holograph, corrected (pp. 1-51a). Box 36, folder 682. 1942. https://collections.library.yale.edu/catalog/17274612.
APA, 6th edition
Cassirer, Ernst, 1874-1945. (["Box 36, folder 682"])(1942)["Chapter III. Pythagoras and the Pythagoreans": draft, holograph, corrected (pp. 1-51a)]. https://collections.library.yale.edu/catalog/17274612.