APA (7th ed.) Citation

Duffy, C. (1985). Frederick the Great : a military life / Christopher Duffy: A military life. Routledge & Kegan Paul.

Chicago Style (17th ed.) Citation

Duffy, Christopher. Frederick the Great : A Military Life / Christopher Duffy: A Military Life. London: Routledge & Kegan Paul, 1985.

MLA (9th ed.) Citation

Duffy, Christopher. Frederick the Great : A Military Life / Christopher Duffy: A Military Life. Routledge & Kegan Paul, 1985.

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