Soil survey of Johnson County, Iowa /
United States Department of Agriculture, Soil Conservation Service ; in cooperation with Iowa Agriculture and Home Economics Experiment Station ... [et al.].

APA Citation

Schermerhorn, E. J., Iowa Agriculture and Home Economics Experiment Station., United States. Soil Conservation Service. (1983). Soil survey of Johnson County, Iowa. [Washington, D.C.]: The Service.

MLA Citation

Schermerhorn, Edward J., 1921-, Iowa Agriculture and Home Economics Experiment Station, and United States. Soil Conservation Service. Soil Survey of Johnson County, Iowa. [Washington, D.C.]: The Service, 1983.

Warning: These citations may not always be complete (especially for serials).