Gottschall 2003, 42쪽 괄호 없는 하버드 인용 error: 대상 없음: CITEREFGottschall2003 (help) Gottschall, Terrell D. (2003). 《By Order of the Kaiser. Otto von Diederichs and the Rise of the Imperial German Navy, 1865–1902》 (영어). Annapolis: Naval Institute Press. ISBN1-55750-309-5.
Gottschall 2003, 43쪽 괄호 없는 하버드 인용 error: 대상 없음: CITEREFGottschall2003 (help) Gottschall, Terrell D. (2003). 《By Order of the Kaiser. Otto von Diederichs and the Rise of the Imperial German Navy, 1865–1902》 (영어). Annapolis: Naval Institute Press. ISBN1-55750-309-5.
Gottschall 2003, 18쪽 괄호 없는 하버드 인용 error: 대상 없음: CITEREFGottschall2003 (help) Gottschall, Terrell D. (2003). 《By Order of the Kaiser. Otto von Diederichs and the Rise of the Imperial German Navy, 1865–1902》 (영어). Annapolis: Naval Institute Press. ISBN1-55750-309-5.