Obermeier, S. F., Russ, D. P., & Crone, A. J. (1989). The New Madrid earthquakes: An engineering-geologic interpretation of relict liquefaction features. Dept. of the Interior, U.S. Geological Survey.
Chicago Style (17th ed.) CitationObermeier, Stephen F., D. P. Russ, and Anthony J. Crone. The New Madrid Earthquakes: An Engineering-geologic Interpretation of Relict Liquefaction Features. [Reston, Va.]: Dept. of the Interior, U.S. Geological Survey, 1989.
MLA (9th ed.) CitationObermeier, Stephen F., et al. The New Madrid Earthquakes: An Engineering-geologic Interpretation of Relict Liquefaction Features. Dept. of the Interior, U.S. Geological Survey, 1989.
Warning: These citations may not always be 100% accurate.