Soil survey, Worcester County, Maryland /
by S.O. Perkins and S.R. Bacon.

APA Citation

Bacon, S. Rankin., Perkins, S. O. (Samuel Oscar)., Maryland Agricultural Experiment Station., Maryland Geological Survey., United States. Bureau of Chemistry and Soils. (1928). Soil survey, Worcester County, Maryland. Washington, D.C.: U.S. G.P.O..

MLA Citation

United States. Bureau of Chemistry and Soils, et al.. Soil Survey, Worcester County, Maryland. Washington, D.C.: U.S. G.P.O., 1928.

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