Gaya APA

Tannenbaum, D, G. (2013). Inventors of Ideas: An introduction to western political philosophy (Ed. 3). United States: Wadswowrth, Cengage Learning.

Gaya MLA

Tannenbaum, Donald, G.. "Inventors of Ideas: An introduction to western political philosophy". Ed. 3 United States: Wadswowrth, Cengage Learning, 2013. book.