Παραπομπή σε μορφή APA (7η εκδ.)

Ford, H. J. (1915). The natural history of the state: An introduction to political science. Princeton university press; [etc., etc.].

Παραπομπή σε μορφή Chicago (17η εκδ.)

Ford, Henry Jones. The Natural History of the State: An Introduction to Political Science. Princeton: Princeton university press; [etc., etc.], 1915.

Παραπομπή σε μορφή MLA (8th εκδ.)

Ford, Henry Jones. The Natural History of the State: An Introduction to Political Science. Princeton university press; [etc., etc.], 1915.