APA (7th ed.) Citation

Nelson, G. D. (1997). Soil survey of Mahnomen County, Minnesota. The Service.

Chicago Style (17th ed.) Citation

Nelson, Gary D. Soil Survey of Mahnomen County, Minnesota. [Washington, D.C.?]: The Service, 1997.

MLA (9th ed.) Citation

Nelson, Gary D. Soil Survey of Mahnomen County, Minnesota. The Service, 1997.