APA (7th ed.) Citation

Holsti, O. R., Siverson, R. M., & George, A. L. (1980). Change in the international system. Westview Press.

Chicago Style (17th ed.) Citation

Holsti, Ole R., Randolph M. Siverson, and Alexander L. George. Change in the International System. Boulder, Colorado: Westview Press, 1980.

MLA (9th ed.) Citation

Holsti, Ole R., et al. Change in the International System. Westview Press, 1980.