Soil survey of Nelson County area, North Dakota /
United States Department of Agriculture, Soil Conservation Service ; in cooperation with North Dakota Agricultural Experiment Station, North Dakota Cooperative Extension Service, and North Dakota State Soil Conservation Committee

APA Citation

United States. Soil Conservation Service. (1989). Soil survey of Nelson County area, North Dakota. [Washington, D.C.?]: U.S. Dept. of Agriculture, Soil Conservation Service.

MLA Citation

United States. Soil Conservation Service. Soil Survey of Nelson County Area, North Dakota. [Washington, D.C.?]: U.S. Dept. of Agriculture, Soil Conservation Service, 1989.

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