APA (7th ed.) Citation

(1989). Duluth complex and associated rocks of the Midcontinent rift system: Minneapolis to Duluth, Minnesota. American Geophysical Union.

Chicago Style (17th ed.) Citation

Duluth Complex and Associated Rocks of the Midcontinent Rift System: Minneapolis to Duluth, Minnesota. Washington, DC: American Geophysical Union, 1989.

MLA (9th ed.) Citation

Duluth Complex and Associated Rocks of the Midcontinent Rift System: Minneapolis to Duluth, Minnesota. American Geophysical Union, 1989.

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