Signatures on the land.
APA Citation
United States. Natural Resources Conservation Service., Soil and Water Conservation Society (U.S.). (2001). Signatures on the land. [Washington, D.C.?]: Soil and Water Conservation Society ; with assistance from USDA Natural Resources Conservation Service.
MLA Citation
United States. Natural Resources Conservation Service, and Soil and Water Conservation Society (U.S.). Signatures On the Land. [Washington, D.C.?]: Soil and Water Conservation Society ; with assistance from USDA Natural Resources Conservation Service, 2001.
Warning: These citations may not always be complete (especially for serials).