Ruhl, J. F. (1989). Water resources of the Fond du Lac Indian Reservation, east-central Minnesota. U.S. Geological Survey.
Chicago Style (17th ed.) CitationRuhl, J. F. Water Resources of the Fond Du Lac Indian Reservation, East-central Minnesota. St. Paul, Minnesota: U.S. Geological Survey, 1989.
MLA (9th ed.) CitationRuhl, J. F. Water Resources of the Fond Du Lac Indian Reservation, East-central Minnesota. U.S. Geological Survey, 1989.
Warning: These citations may not always be 100% accurate.