Citazione Stile APA (7a Edizione)

Sumner, W. G. (1966). The conquest of the United States by Spain. Lecture, before the Phi Beta Kappa Society of Yale University, Jan. 16, 1899 [microform]. M.I.T. Libraries.

Citazione stile Chigago Style (17a edizione)

Sumner, William Graham. The Conquest of the United States by Spain. Lecture, Before the Phi Beta Kappa Society of Yale University, Jan. 16, 1899 [microform]. Cambridge, Mass: M.I.T. Libraries, 1966.

Citatione MLA (9a ed.)

Sumner, William Graham. The Conquest of the United States by Spain. Lecture, Before the Phi Beta Kappa Society of Yale University, Jan. 16, 1899 [microform]. M.I.T. Libraries, 1966.