APA (7th ed.) Citation

United States Coast Survey. United States--Great Lakes, Lake Superior--Wisconsin, Ashland and Washburn harbors. The Survey.

Chicago Style (17th ed.) Citation

United States Coast Survey. United States--Great Lakes, Lake Superior--Wisconsin, Ashland and Washburn Harbors. Washington, D.C.: The Survey.

MLA (9th ed.) Citation

United States Coast Survey. United States--Great Lakes, Lake Superior--Wisconsin, Ashland and Washburn Harbors. The Survey.

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