bf:dimensions | 4x6 in. or 11x15 cm. | (DUKE002974813) |
bf:dimensions | 44 x 73 cm., sheets 66 x 102 cm. and 132 x 102 cm. | (DUKE002974813) |
bf:provisionActivityStatement | [Reston, Va.?] : The Survey, 1987. | (DUKE002974813) |
bf:responsibilityStatement | Department of the Interior, United States Geological Survey ; by Alan H. Welch and Rhea P. Williams. | (DUKE002974813) |