Manuscript notes of identification written on the backs of two small photographs of European rulers
MLA
Clemens, Samuel Langhorne, 1835-1910. Manuscript notes of identification written on the backs of two small photographs of European rulers. Box 10. undated. https://collections.library.yale.edu/catalog/16068640.
APA, 6th edition
Clemens, Samuel Langhorne, 1835-1910. (["Box 10"])(undated)[Manuscript notes of identification written on the backs of two small photographs of European rulers]. https://collections.library.yale.edu/catalog/16068640.