O'Hara, N. W. (1981). Great Lakes region gravity and magnetic map sequence, MC-39, Lake Huron area. Geological Society of America.
Chicago Style (17th ed.) CitationO'Hara, Norbert W. Great Lakes Region Gravity and Magnetic Map Sequence, MC-39, Lake Huron Area. Boulder, Colo.: Geological Society of America, 1981.
MLA (8th ed.) CitationO'Hara, Norbert W. Great Lakes Region Gravity and Magnetic Map Sequence, MC-39, Lake Huron Area. Geological Society of America, 1981.
Warning: These citations may not always be 100% accurate.