APA (7 ম সংস্করণ) উদ্ধৃতি

Watkins,J.W.N. (1973). Hobbes's system of idea: A study in the political significance of philosophical theories. Hutchinson University Library.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Watkins,J.W.N. Hobbes's System of Idea: A Study in the Political Significance of Philosophical Theories. London: Hutchinson University Library, 1973.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Watkins,J.W.N. Hobbes's System of Idea: A Study in the Political Significance of Philosophical Theories. Hutchinson University Library, 1973.