A legacy of conservation :
75 years helping people help the land in North Dakota, 1935-2010 /
Natural Resources Conservation Service.

APA Citation

United States. Natural Resources Conservation Service. (2010). A legacy of conservation: 75 years helping people help the land in North Dakota, 1935-2010. [Washington, D.C.]: NRCS.

MLA Citation

United States. Natural Resources Conservation Service. A Legacy of Conservation: 75 Years Helping People Help the Land In North Dakota, 1935-2010. [Washington, D.C.]: NRCS, 2010.

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