United States. Hydrographic Office. (1901). Supplement: Sailing directions for Lake Superior and St. Mary's River. GPO.
Chicago Style (17th ed.) CitationUnited States. Hydrographic Office. Supplement: Sailing Directions for Lake Superior and St. Mary's River. [Washington]: GPO, 1901.
MLA (9th ed.) CitationUnited States. Hydrographic Office. Supplement: Sailing Directions for Lake Superior and St. Mary's River. GPO, 1901.
Warning: These citations may not always be 100% accurate.