APA (7th ed.) Citation

Hawkins, R. L. (1938). Positivism in the United States (1853-1861). Harvard University Press.

Chicago Style (17th ed.) Citation

Hawkins, Richmond Laurin. Positivism in the United States (1853-1861). Cambridge: Harvard University Press, 1938.

MLA (9th ed.) Citation

Hawkins, Richmond Laurin. Positivism in the United States (1853-1861). Harvard University Press, 1938.