Παραπομπή σε μορφή APA (7η εκδ.)

O'Neil, P. H. (2012). Essentials of comparative politics (4th edition.). W. W. Norton and Co.

Παραπομπή σε μορφή Chicago (17η εκδ.)

O'Neil, Patrick H. Essentials of Comparative Politics. 4th edition. New York: W. W. Norton and Co, 2012.

Παραπομπή σε μορφή MLA (9th εκδ.)

O'Neil, Patrick H. Essentials of Comparative Politics. 4th edition. W. W. Norton and Co, 2012.