Cita APA (7th ed.)
Caplan, R. Measuring Peace: Principles, Practices, and Politics. Oxford University.
Cita Chicago (17th ed.)
Caplan, Richard. Measuring Peace: Principles, Practices, and Politics. Oxford, Inglaterra: Oxford University.
Cita MLA (9th ed.)
Caplan, Richard. Measuring Peace: Principles, Practices, and Politics. Oxford University.
Atenció: Aquestes cites poden no estar 100% correctes.