MLA

McGlashan, E. L. (Everitt Lynn), 1911-1978. Davis, John. Receipt for "two Negroes, Jacob and Sam" from Thomas H. Anderson (H77). Box 1, folder 12. 1846 Oct 23. https://collections.library.yale.edu/catalog/33219106.

APA, 6th edition

McGlashan, E. L. (Everitt Lynn), 1911-1978. (["Box 1, folder 12"])(1846 Oct 23)[Davis, John. Receipt for "two Negroes, Jacob and Sam" from Thomas H. Anderson (H77)]. https://collections.library.yale.edu/catalog/33219106.