APA (7th ed.) Citation

Varnes, D. J., Radbruch-Hall, D. H., & Savage, W. Z. (1989). Topographic and structural conditions in areas of gravitational spreading of ridges in the western United States. Department of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Varnes, David J., Dorothy H. Radbruch-Hall, and William Z. Savage. Topographic and Structural Conditions in Areas of Gravitational Spreading of Ridges in the Western United States. Washington: Department of the Interior, U.S. Geological Survey, 1989.

MLA (9th ed.) Citation

Varnes, David J., et al. Topographic and Structural Conditions in Areas of Gravitational Spreading of Ridges in the Western United States. Department of the Interior, U.S. Geological Survey, 1989.