APA (7th ed.) Citation

Kolpin, D. W., & Kalkhoff, S. J. (1992). Time of travel and dispersion in a selected reach of Roberts Creek, Clayton County, Iowa. U.S. Dept. of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Kolpin, D. W., and Stephen J. Kalkhoff. Time of Travel and Dispersion in a Selected Reach of Roberts Creek, Clayton County, Iowa. Iowa City, Iowa: U.S. Dept. of the Interior, U.S. Geological Survey, 1992.

MLA (9th ed.) Citation

Kolpin, D. W., and Stephen J. Kalkhoff. Time of Travel and Dispersion in a Selected Reach of Roberts Creek, Clayton County, Iowa. U.S. Dept. of the Interior, U.S. Geological Survey, 1992.