APA (7th ed.) Citation

Dalrymple, D. (1787). Sketch of the life of Mark Alexander Boyd. [publisher not identified].

Chicago Style (17th ed.) Citation

Dalrymple, David. Sketch of the Life of Mark Alexander Boyd. [London?]: [publisher not identified], 1787.

MLA (8th ed.) Citation

Dalrymple, David. Sketch of the Life of Mark Alexander Boyd. [publisher not identified], 1787.

Warning: These citations may not always be 100% accurate.