MLA

MacDonald, George, 1824-1905. "D" general. Box 2, folder 62. 1872-95. https://collections.library.yale.edu/catalog/17297726.

APA, 6th edition

MacDonald, George, 1824-1905. (["Box 2, folder 62"])(1872-95)["D" general]. https://collections.library.yale.edu/catalog/17297726.