Travels in a series of letters from a gentleman to his father, in the years 1787, 88, & 89, [ca. 1791-1792].
MLA
Watkins, Thomas, 1761-1829. Travels in a series of letters from a gentleman to his father, in the years 1787, 88, & 89, [ca. 1791-1792].. https://collections.library.yale.edu/catalog/16813287.
APA, 6th edition
Watkins, Thomas, 1761-1829. [Travels in a series of letters from a gentleman to his father, in the years 1787, 88, & 89, [ca. 1791-1792].]. https://collections.library.yale.edu/catalog/16813287.