APA (7th ed.) Citation

Johnson, F. L. (1985). Mines and prospects map of the Glacier Peak Roadless Area, Snohomish County, Washington. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Johnson, Fredrick L. Mines and Prospects Map of the Glacier Peak Roadless Area, Snohomish County, Washington. Reston, Va.: U.S. Geological Survey, 1985.

MLA (9th ed.) Citation

Johnson, Fredrick L. Mines and Prospects Map of the Glacier Peak Roadless Area, Snohomish County, Washington. U.S. Geological Survey, 1985.