APA (7th ed.) Citation

Mitford, N., & Law, J. (1973). Frederick the Great: Nancy Mitford. Picture research by Joy Law. Penguin Books.

Chicago Style (17th ed.) Citation

Mitford, Nancy, and Joy Law. Frederick the Great: Nancy Mitford. Picture Research by Joy Law. Harmondsworth, Middlesex, England: Penguin Books, 1973.

MLA (8th ed.) Citation

Mitford, Nancy, and Joy Law. Frederick the Great: Nancy Mitford. Picture Research by Joy Law. Penguin Books, 1973.