Busch, R., & Röll, H. (1999). German U-boat commanders of World War II: A biographical dictionary. Greenhill Books ; Naval Institute Press.
Chicago Style (17th ed.) CitationBusch, Rainer, and Hans-Joachim Röll. German U-boat Commanders of World War II: A Biographical Dictionary. London : Annapolis, Md.: Greenhill Books ; Naval Institute Press, 1999.
MLA (9th ed.) CitationBusch, Rainer, and Hans-Joachim Röll. German U-boat Commanders of World War II: A Biographical Dictionary. Greenhill Books ; Naval Institute Press, 1999.
Warning: These citations may not always be 100% accurate.