APA (7th ed.) Citation

Mitford, N. (1973). Frederick the Great. Penguin Books.

Chicago Style (17th ed.) Citation

Mitford, Nancy. Frederick the Great. Harmondsworth, Middlesex: Penguin Books, 1973.

MLA (8th ed.) Citation

Mitford, Nancy. Frederick the Great. Penguin Books, 1973.

Warning: These citations may not always be 100% accurate.