(1880). Chart of Isle Royale including North West coast of Lake Superior: Projected and drawn from trigonometrical surveys (Aids to navigation corrected to January 1 1880.). [Bureau of Topographical Engineers].
Chicago-Zitierstil (17. Ausg.)Chart of Isle Royale Including North West Coast of Lake Superior: Projected and Drawn from Trigonometrical Surveys. Aids to navigation corrected to January 1 1880. S.l. [Washington, D.C.]: [Bureau of Topographical Engineers], 1880.
MLA-Zitierstil (9. Ausg.)Chart of Isle Royale Including North West Coast of Lake Superior: Projected and Drawn from Trigonometrical Surveys. Aids to navigation corrected to January 1 1880. [Bureau of Topographical Engineers], 1880.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.