1983. United States. Soil Conservation Service. Shows land use.; "January 1983."; Includes location map. 91 x 112 centimeters Scale 1:50,000. The Service (Harrisburg, Pa.).
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1983. United States. Soil Conservation Service. Shows land use.; "February 1983."; Includes location map. 122 x 95 centimeters Scale 1:50,000. The Service (Harrisburg, Pa.?).
1983. United States. Soil Conservation Service. Shows land use.; "February 1983."; Includes location map.; "Sheet 2 of 2." 112 x 91 centimeters Scale 1:50,000. The Service (Harrisburg, Pa.).