Geological Survey (U.S.), Helmens, K. F., Koster, E. A., & Galloway, J. P. (1985). Photo-interpretation map of surficial deposits and landforms of the Kobuk sand dunes and part of the Kobuk lowland, Alaska. The Survey.
Chicago Style (17th ed.) CitationGeological Survey (U.S.), Karin F. Helmens, Eduard A. Koster, and John P. Galloway. Photo-interpretation Map of Surficial Deposits and Landforms of the Kobuk Sand Dunes and Part of the Kobuk Lowland, Alaska. [Denver, Colo.?]: The Survey, 1985.
MLA (9th ed.) CitationGeological Survey (U.S.), et al. Photo-interpretation Map of Surficial Deposits and Landforms of the Kobuk Sand Dunes and Part of the Kobuk Lowland, Alaska. The Survey, 1985.
Warning: These citations may not always be 100% accurate.