Gibson, John: autograph letter, signed, from John Gibson, Auditor General, to Nathaniel Appleton. Philadelphia, Pennsylvania
MLA
Gibson, John: Autograph Letter, Signed, from John Gibson, Auditor General, to Nathaniel Appleton. Philadelphia, Pennsylvania. 1777. https://collections.library.yale.edu/catalog/11976458.
APA, 6th edition
Gibson, John: autograph letter, signed, from John Gibson, Auditor General, to Nathaniel Appleton. Philadelphia, Pennsylvania. (1777). https://collections.library.yale.edu/catalog/11976458.