APA (7th ed.) Citation

Muzzey, D. S., Krout, J. A., & Steiger, G. N. (1944). America, a world power,1898-1944. Ginn and company.

Chicago Style (17th ed.) Citation

Muzzey, David Saville, John A. Krout, and G. Nye Steiger. America, a World Power,1898-1944. Boston, New York [etc]: Ginn and company, 1944.

MLA (9th ed.) Citation

Muzzey, David Saville, et al. America, a World Power,1898-1944. Ginn and company, 1944.