APA (7th ed.) Citation

Pilcher, S. H. (2000). Unimak quadrangle: Alaska resource data file. U.S. Dept. of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Pilcher, Steven H. Unimak Quadrangle: Alaska Resource Data File. [Menlo Park, Calif.]: U.S. Dept. of the Interior, U.S. Geological Survey, 2000.

MLA (9th ed.) Citation

Pilcher, Steven H. Unimak Quadrangle: Alaska Resource Data File. U.S. Dept. of the Interior, U.S. Geological Survey, 2000.