APA-viite (7. p.)
Caplan, R. (2019). Measuring Peace: Principles, Practices, and Politics. Oxford University.
Chicago-viite (17. p.)
Caplan, Richard. Measuring Peace: Principles, Practices, and Politics. Oxford, Inglaterra: Oxford University, 2019.
MLA-viite (9. p.)
Caplan, Richard. Measuring Peace: Principles, Practices, and Politics. Oxford University, 2019.
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