Cita APA (7a ed.)

Watkins, J. W. N. (1973). Hobbes's system of ideas: A study in the political significance of philosophical theories (2nd ed.). Hutchinson.

Cita Chicago Style (17a ed.)

Watkins, John W. N. Hobbes's System of Ideas: A Study in the Political Significance of Philosophical Theories. 2nd ed. London: Hutchinson, 1973.

Cita MLA (9a ed.)

Watkins, John W. N. Hobbes's System of Ideas: A Study in the Political Significance of Philosophical Theories. 2nd ed. Hutchinson, 1973.