Cite

Printed ephemera

MLA

Whitman, Walt, 1819-1892. Printed ephemera. Box 1, folder 23. 1887, n.d.. https://collections.library.yale.edu/catalog/2053657.

APA, 6th edition

Whitman, Walt, 1819-1892. (["Box 1, folder 23"])(1887, n.d.)[Printed ephemera]. https://collections.library.yale.edu/catalog/2053657.