Barker, E. (1989). Political thought: From herbert spencer to the present day. Printwell.
শিকাগো স্টাইলে সাইটেশনBarker, Ernest. Political Thought: From Herbert Spencer to the Present Day. Jaipur: Printwell, 1989.
এমএলএ সাইটেশনBarker, Ernest. Political Thought: From Herbert Spencer to the Present Day. Printwell, 1989.
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