APA (7th ed.) Citation

Cannon, W. F., & Ottke, D. (2000). Preliminary digital geologic map of the Penokean (early Proterozoic) continental margin in northern Michigan and Wisconsin. U.S. Dept. of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Cannon, William F., and Doug Ottke. Preliminary Digital Geologic Map of the Penokean (early Proterozoic) Continental Margin in Northern Michigan and Wisconsin. [Reston, Va.]: U.S. Dept. of the Interior, U.S. Geological Survey, 2000.

MLA (9th ed.) Citation

Cannon, William F., and Doug Ottke. Preliminary Digital Geologic Map of the Penokean (early Proterozoic) Continental Margin in Northern Michigan and Wisconsin. U.S. Dept. of the Interior, U.S. Geological Survey, 2000.