MLA

Morse, William R. (William Reginald), 1874-1939. Pages 2-7 of handwritten essay by W.R. Morse regarding Chinese medicine and his medical work. 5, folder 100. 1930-1931. https://collections.library.yale.edu/catalog/33391023.

APA, 6th edition

Morse, William R. (William Reginald), 1874-1939. (["5, folder 100"])(1930-1931)[Pages 2-7 of handwritten essay by W.R. Morse regarding Chinese medicine and his medical work]. https://collections.library.yale.edu/catalog/33391023.