Receipt, signed, Weimar
MLA
Speck, William A. (William Alfred), 1864-1928. Receipt, signed, Weimar. Box 10, folder 315. 1791 Sep 30. https://collections.library.yale.edu/catalog/2005376.
APA, 6th edition
Speck, William A. (William Alfred), 1864-1928. (["Box 10, folder 315"])(1791 Sep 30)[Receipt, signed, Weimar]. https://collections.library.yale.edu/catalog/2005376.