APA (7th ed.) Citation

Haas, E. B. (1968). Collective security and the future international system. University of Denver.

Chicago Style (17th ed.) Citation

Haas, Ernst B. Collective Security and the Future International System. Denver: University of Denver, 1968.

MLA (9th ed.) Citation

Haas, Ernst B. Collective Security and the Future International System. University of Denver, 1968.

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