MLA

Whitney, Eli, 1765-1825. Musket production: Eli Whitney; (1765-1825) statement, notes, etc.. Box 8, folder 119, reel 5 | reel 5U. 1810, 1816, 1820, undated. https://collections.library.yale.edu/catalog/32521916.

APA, 6th edition

Whitney, Eli, 1765-1825. (["Box 8, folder 119, reel 5 | reel 5U"])(1810, 1816, 1820, undated)[Musket production: Eli Whitney; (1765-1825) statement, notes, etc.]. https://collections.library.yale.edu/catalog/32521916.