APA (7th ed.) Citation

Showell, J. P. M. (1989). U-Boat Command and the Battle of the Atlantic. Conway Maritime.

Chicago Style (17th ed.) Citation

Showell, Jak P. Mallmann. U-Boat Command and the Battle of the Atlantic. London: Conway Maritime, 1989.

MLA (9th ed.) Citation

Showell, Jak P. Mallmann. U-Boat Command and the Battle of the Atlantic. Conway Maritime, 1989.

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