MLA

Daggett, David, 1764-1851, Mountain, Joseph, 1758-1790. Sketches of the life of Joseph Mountain, : a Negro, who was executed at New-Haven, on the 20th day of October, 1790, for a rape, committed on the 26th day of May last. : (The writer of this history has directed that the money arising from the sales thereo. [1790]. https://collections.library.yale.edu/catalog/10105360.

APA, 6th edition

Daggett, David, 1764-1851, & Mountain, Joseph, 1758-1790. ([1790])[Sketches of the life of Joseph Mountain, : a Negro, who was executed at New-Haven, on the 20th day of October, 1790, for a rape, committed on the 26th day of May last. : (The writer of this history has directed that the money arising from the sales thereo]. https://collections.library.yale.edu/catalog/10105360.