1980. Struble, Richard A. "Areal density of photo linears occurring within a 5000 meter square grid." Base map: USGS Cleveland, Ohio; Pa., U.S., Ont., Can. (4th ed. 1972 rev... Ohio. Division of Geological Survey.
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1980. Struble, Richard A. Base map: USGS Cleveland, Ohio; Pa., U.S., Ont., Can. (4th ed. 1972 rev.) "Areal density of photo linears occurring within a 5000 meter square grid... Ohio. Division of Geological Survey.
1980. Struble, Richard A. Title assigned by cataloguer. prepared ... by Richard A. Struble and David A. Hodges. "Areal density of photo linears occurring within a 5000 meter... Ohio. Division of Geological Survey.
1980. Struble, Richard A. Title assigned by cataloguer. prepared ... by Richard A. Struble and David A. Hodges. "Areal density of photo linears occurring within a 5000 meter... Ohio. Division of Geological Survey.
1885. Sanborn Map Company. Selinsgrove, Pa., Sep. 1885. 1 map on 2 sheets : col. ; sheets 65 x 54 cm. Scale approximately 1:600. 50 ft. to an in. Sanborn Map Company.
1899. Sanborn Map Company. Selinsgrove, Snyder Co., Pa., July, 1899. 1 map on 5 sheets : col. ; sheets 65 x 54 cm. Scale approximately 1:600. 50 ft. to an in. Sanborn Map Company.
1905. Sanborn Map Company. Selinsgrove, Snyder County, Pennsylvania, March, 1905. 1 map on 5 sheets : col. ; sheets 65 x 54 cm. Scale approximately 1:600. 50 ft. to an in. Sanborn Map Company.
1913. Sanborn Map Company. Selinsgrove, Snyder County, Pennsylvania, March, 1913. 1 map on 7 sheets : col. ; sheets 65 x 54 cm. Scale approximately 1:600. 50 ft. to an in. Sanborn Map Company.
1908. Sanborn Map Company. Sellersville, Bucks County, Pennsylvania, October 1908. 1 map on 4 sheets : col. ; sheets 65 x 54 cm. Scale approximately 1:600. 50 ft. to an in. Sanborn Map Company.
1913. Sanborn Map Company. Sellersville, Bucks County, Pennsylvania, November 1913. 1 map on 6 sheets : col. ; sheets 65 x 54 cm. Scale approximately 1:600. 50 ft. to an in. Sanborn Map Company.