APA (7th ed.) Citation

Vickers, H. (1980). Gladys, Duchess of Marlborough. Holt, Rinehart and Winston.

Chicago Style (17th ed.) Citation

Vickers, Hugo. Gladys, Duchess of Marlborough. New York: Holt, Rinehart and Winston, 1980.

MLA (9th ed.) Citation

Vickers, Hugo. Gladys, Duchess of Marlborough. Holt, Rinehart and Winston, 1980.