Παραπομπή σε μορφή APA (7η εκδ.)

Nagle John D. (1989). Introduction to comparative politics: Political system performance in the three worlds (2nd. ed.). Nelson-Hall.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Nagle John D. Introduction to Comparative Politics: Political System Performance in the Three Worlds. 2nd. ed. Chicago: Nelson-Hall, 1989.

Παραπομπή σε μορφή MLA (9th εκδ.)

Nagle John D. Introduction to Comparative Politics: Political System Performance in the Three Worlds. 2nd. ed. Nelson-Hall, 1989.