Soil survey of Custer County, Nebraska
MLA
Soil Survey of Custer County, Nebraska. [Washington, D.C.?]: The Service, 1982
APA, 7th edition
(1982). Soil survey of Custer County, Nebraska. [Washington, D.C.?]: The Service
Chicago, 17th edition
Soil survey of Custer County, Nebraska. [Washington, D.C.?]: The Service, 1982