Cite

W. H. Piper and Co.

MLA

Whitman, Walt, 1819-1892. W. H. Piper and Co.. Box 2, folder 72. 1871 Dec 8. https://collections.library.yale.edu/catalog/2053706.

APA, 6th edition

Whitman, Walt, 1819-1892. (["Box 2, folder 72"])(1871 Dec 8)[W. H. Piper and Co.]. https://collections.library.yale.edu/catalog/2053706.