Soil survey, Rock County, Minnesota
By: [by W. I. Watkins and others].
Series: [Soil survery report] Series 1938 -- no. 21.
Publisher: U.S. Govt. Print. Off.
Published: 1949
Place of publication: [Washington
Language: eng
Number of pages: 66
Subjects: Soils -- Minnesota -- Rock County -- Maps.; Soil surveys -- Minnesota -- Rock County.
Genres: Maps.
Other titles: Soil survey of Rock County, Minnesota.
Notes: Cover title.

In cooperation with the University of Minnesota Agricultural Experiment Station.

"Literature cited" : p. 66.