United States Department of Agriculture, Natural Resources Conservation Service ; in cooperation with Mississippi Agricultural and Forestry Experiment Station
United States Department of Agriculture, Soil Conservation Service ; in cooperation with United States Department of Agriculture, Forest Service, and Mississippi Agricultural and Forestry Experiment Station
United States Department of Agriculture, Forest Service and Soil Conservation Service ; in cooperation with Mississippi Agricultural and Forestry Experiment Station
United States Department of Agriculture, Natural Resources Conservation Service ; in cooperation with the Mississippi Agricultural and Forestry Experiment Station
United States Department of Agriculture, Soil Conservation Service, in cooperation with United States Department of Agriculture, Forest Service, and Mississippi Agricultural and Forestry Experiment Station