APA (7th ed.) Citation

Cummins, J. F., & Grigal, D. F. (1980). Soils and land surfaces of Minnesota, 1980. Dept. of Soil Science, University of Minnesota, Agricultural Experiment Station.

Chicago Style (17th ed.) Citation

Cummins, J. F., and D. F. Grigal. Soils and Land Surfaces of Minnesota, 1980. Saint Paul, Minn.: Dept. of Soil Science, University of Minnesota, Agricultural Experiment Station, 1980.

MLA (9th ed.) Citation

Cummins, J. F., and D. F. Grigal. Soils and Land Surfaces of Minnesota, 1980. Dept. of Soil Science, University of Minnesota, Agricultural Experiment Station, 1980.