APA (7th ed.) Citation

Jessup, P. C. (1949). A modern law of nations: An introduction. MacMillan.

Chicago Style (17th ed.) Citation

Jessup, Philip C. A Modern Law of Nations: An Introduction. New York: MacMillan, 1949.

MLA (9th ed.) Citation

Jessup, Philip C. A Modern Law of Nations: An Introduction. MacMillan, 1949.

Warning: These citations may not always be 100% accurate.