APA (7th ed.) Citation

Geological Survey (U.S.) & Ellefsen, K. (2007). Field demonstrations of five geophysical methods that could be used to characterize deposits of alluvial aggregate. U.S. Dept. of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.) and Karl Ellefsen. Field Demonstrations of Five Geophysical Methods That Could Be Used to Characterize Deposits of Alluvial Aggregate. Reston, Va.: U.S. Dept. of the Interior, U.S. Geological Survey, 2007.

MLA (9th ed.) Citation

Geological Survey (U.S.) and Karl Ellefsen. Field Demonstrations of Five Geophysical Methods That Could Be Used to Characterize Deposits of Alluvial Aggregate. U.S. Dept. of the Interior, U.S. Geological Survey, 2007.