Cite

Semper, C.

MLA

Marsh, Othniel Charles, 1831-1899. Semper, C.. Box 29, folder 1234. 1892. https://collections.library.yale.edu/catalog/32566851.

APA, 6th edition

Marsh, Othniel Charles, 1831-1899. (["Box 29, folder 1234"])(1892)[Semper, C.]. https://collections.library.yale.edu/catalog/32566851.