APA (7th ed.) Citation

Petersen, M. D. (2011). Seismic-hazard maps for the conterminous United States, 2008. U.S. Dept. of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Petersen, Mark D. Seismic-hazard Maps for the Conterminous United States, 2008. [Reston, Va.]: U.S. Dept. of the Interior, U.S. Geological Survey, 2011.

MLA (9th ed.) Citation

Petersen, Mark D. Seismic-hazard Maps for the Conterminous United States, 2008. U.S. Dept. of the Interior, U.S. Geological Survey, 2011.