Cite

"M" Compositions

MLA

Marsh, Othniel Charles, 1831-1899. "M" Compositions. Box 48, folder 20. undated. https://collections.library.yale.edu/catalog/32572009.

APA, 6th edition

Marsh, Othniel Charles, 1831-1899. (["Box 48, folder 20"])(undated)["M" Compositions]. https://collections.library.yale.edu/catalog/32572009.