by R.T. Avon Burke ... [and others] ; United States Department of Agriculture, Bureau of Chemistry and Soils ; in cooperation with the Pennsylvania State College School of Agriculture and Experiment Station
by R. T. A. Burke ... [and others] ; United States Department of Agriculture, Agricultural Research Administration, Bureau of Plant Industry, Soils, and Agricultural Engineering
Date
[1946]
Series
[U. S. Bureau of plant industry, soils, and agricultural engineering. Soil survey report] Series 1936 ; no. 25