APA (7th ed.) Citation

Geological Survey, Anderson, L. A., & Tyson, N. S. (1963). Aeromagnetic map of the Northwestern part of Cook County, Minnesota. The Survey.

Chicago Style (17th ed.) Citation

Geological Survey, Lennart A. Anderson, and Natalie S. Tyson. Aeromagnetic Map of the Northwestern Part of Cook County, Minnesota. Washington, D.C.: The Survey, 1963.

MLA (8th ed.) Citation

Geological Survey, et al. Aeromagnetic Map of the Northwestern Part of Cook County, Minnesota. The Survey, 1963.