Citazione Stile APA (7a Edizione)

Willoughby, W. F. (1936). The government of modern states. D. Appleton-Century company, incorporated.

Citazione stile Chigago Style (17a edizione)

Willoughby, William Franklin. The Government of Modern States. New York, London: D. Appleton-Century company, incorporated, 1936.

Citatione MLA (9a ed.)

Willoughby, William Franklin. The Government of Modern States. D. Appleton-Century company, incorporated, 1936.