APA (7th ed.) Citation

Firth, C. F., & Firth, C. B. (1964). From Napoleon to Hitler (9. impression.). Ginn.

Chicago Style (17th ed.) Citation

Firth, Caterhine F., and Catherine B. Firth. From Napoleon to Hitler. 9. impression. London: Ginn, 1964.

MLA (9th ed.) Citation

Firth, Caterhine F., and Catherine B. Firth. From Napoleon to Hitler. 9. impression. Ginn, 1964.

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