Campbell, Laura
MLA
Koch, Frederick R. (Frederick Robinson). Campbell, Laura. Box 25, folder 540. 1893, n.d.. https://collections.library.yale.edu/catalog/10033894.
APA, 6th edition
Koch, Frederick R. (Frederick Robinson). (["Box 25, folder 540"])(1893, n.d.)[Campbell, Laura]. https://collections.library.yale.edu/catalog/10033894.