Oklahoma Soil Surveys and Maps
To request surveys or to find web soil surveys contact the Oklahoma
state office of the Natural Resources Conservation Service (NRCS).
SU: A 57.38: 956/8
AU: Earl C. Nance, and others
CA: United States Agriculture Department; Oklahoma Agricultural Experiment Station
TI: Harper County, Okla.
SO: [Washington]; United States Agriculture Department. Soil Conservation Service;
PD: cover title,  + 59 p. il. 126 p. of pl. and maps, 4