APA (7th ed.) Citation

Bowman, P. R. (1992). Hydrologic data for a study of pre-Illinoian glacial till in Linn County, Iowa, water year 1991. U.S. Dept. of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Bowman, Phillip R. Hydrologic Data for a Study of Pre-Illinoian Glacial Till in Linn County, Iowa, Water Year 1991. Iowa City, Iowa: U.S. Dept. of the Interior, U.S. Geological Survey, 1992.

MLA (9th ed.) Citation

Bowman, Phillip R. Hydrologic Data for a Study of Pre-Illinoian Glacial Till in Linn County, Iowa, Water Year 1991. U.S. Dept. of the Interior, U.S. Geological Survey, 1992.