APA (7th ed.) Citation

Hobbes, T. (1956). Leviathan: Part I. Henry Regnery.

Chicago Style (17th ed.) Citation

Hobbes, Thomas. Leviathan: Part I. Chicago, Illilnois: Henry Regnery, 1956.

MLA (9th ed.) Citation

Hobbes, Thomas. Leviathan: Part I. Henry Regnery, 1956.