MLA

Williams, S. Wells (Samuel Wells), 1812-1884. Brief note to Perry expedition officers attributed to the hand of Yoshida Shōin [Ka'ei 7/3/22].. Box 2A, folder 47A. 1854 April 19. https://collections.library.yale.edu/catalog/10014092.

APA, 6th edition

Williams, S. Wells (Samuel Wells), 1812-1884. (["Box 2A, folder 47A"])(1854 April 19)[Brief note to Perry expedition officers attributed to the hand of Yoshida Shōin [Ka'ei 7/3/22].]. https://collections.library.yale.edu/catalog/10014092.