APA (7th ed.) Citation

Caldwell, C. (1852). Thoughts on the original unity of the human race (2d. ed.). J. A. & U. P. James.

Chicago Style (17th ed.) Citation

Caldwell, Charles. Thoughts on the Original Unity of the Human Race. 2d. ed. Cincinnati: J. A. & U. P. James, 1852.

MLA (8th ed.) Citation

Caldwell, Charles. Thoughts on the Original Unity of the Human Race. 2d. ed. J. A. & U. P. James, 1852.