Soils of Wisconsin
by A. R. Whitson. Survey conducted in cooperation with the United States Department of agriculture. Bureau of soils.
- Madison, Wisconsin Published by the state 1927.
- x p., 2 l., 270 p. incl. illus., tables. xxxii pl., fold. col. map in pocket. 25 cm.
- Wisconsin. Geological and Natural History Survey. Bulletin Soil series. no. 68. no. 49 .
- Wisconsin Geological and Natural History Survey. Bulletin ; no. 68. .