APA (7th ed.) Citation

Simons, A. M. (1911). Social forces in American history. The Macmillan company.

Chicago Style (17th ed.) Citation

Simons, A. M. Social Forces in American History. New York: The Macmillan company, 1911.

MLA (9th ed.) Citation

Simons, A. M. Social Forces in American History. The Macmillan company, 1911.