Cita APA (7a ed.)

Hume, M. A. S., & Ketcham, H. (1897). Philip II of Spain. Macmillan.

Cita Chicago Style (17a ed.)

Hume, Martin A. S., y Henry Ketcham. Philip II of Spain. London: Macmillan, 1897.

Cita MLA (8a ed.)

Hume, Martin A. S., y Henry Ketcham. Philip II of Spain. Macmillan, 1897.