APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (8th ed.) Citation

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