APA (7th ed.) Citation

Sumner, W. G. (1899). The conquest of the United States by Spain: A lecture before the Phi Beta Kappa Society of Yale University, January 16, 1899. Dana Estes.

Chicago Style (17th ed.) Citation

Sumner, William Graham. The Conquest of the United States by Spain: A Lecture Before the Phi Beta Kappa Society of Yale University, January 16, 1899. Boston: Dana Estes, 1899.

MLA (9th ed.) Citation

Sumner, William Graham. The Conquest of the United States by Spain: A Lecture Before the Phi Beta Kappa Society of Yale University, January 16, 1899. Dana Estes, 1899.