Soil survey, Loudoun County, Virginia
[by H. C. Porter and others. Correlation by W. E. Hearn and W. S. Ligon.

APA Citation

Porter, H. C. (Hobart Clarke)., Virginia Agricultural Experiment Station., United States. Soil Conservation Service. (1960). Soil survey, Loudoun County, Virginia. Washington, D.C.]: U. S. Dept. of Agriculture, Soil Conservation Service.

MLA Citation

Porter, H. C. (Hobart Clarke), 1908-, Virginia Agricultural Experiment Station, and United States. Soil Conservation Service. Soil Survey, Loudoun County, Virginia. Washington, D.C.]: U. S. Dept. of Agriculture, Soil Conservation Service, 1960.