APA (7th ed.) Citation

Hopkins, D. M., & Sigafoos, R. S. (1951). Frost action and vegetation patterns on Seward Peninsula, Alaska: A study of the geomorphic significance of vegetation patterns as related to frost action at high latitudes and in areas of perennially frozen ground. United States Department of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Hopkins, David Moody, and Robert Sumner Sigafoos. Frost Action and Vegetation Patterns on Seward Peninsula, Alaska: A Study of the Geomorphic Significance of Vegetation Patterns as Related to Frost Action at High Latitudes and in Areas of Perennially Frozen Ground. [Washington, D.C.]: United States Department of the Interior, Geological Survey, 1951.

MLA (9th ed.) Citation

Hopkins, David Moody, and Robert Sumner Sigafoos. Frost Action and Vegetation Patterns on Seward Peninsula, Alaska: A Study of the Geomorphic Significance of Vegetation Patterns as Related to Frost Action at High Latitudes and in Areas of Perennially Frozen Ground. United States Department of the Interior, Geological Survey, 1951.