APA (7th ed.) Citation

Caldwell, J. P., & Sadorf, E. M. (2002). Ground water near Pella and in selected parts of Jasper, Mahaska, and Marion counties, Iowa. U.S. Dept. of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Caldwell, James P., and Eric M. Sadorf. Ground Water Near Pella and in Selected Parts of Jasper, Mahaska, and Marion Counties, Iowa. Iowa City, Iowa: U.S. Dept. of the Interior, U.S. Geological Survey, 2002.

MLA (9th ed.) Citation

Caldwell, James P., and Eric M. Sadorf. Ground Water Near Pella and in Selected Parts of Jasper, Mahaska, and Marion Counties, Iowa. U.S. Dept. of the Interior, U.S. Geological Survey, 2002.