@article {5733, title = {Geologic Map of the Blockhouse Quadrangle, Tennessee.}, journal = {Geologic Quadrangle Map GQ-131}, year = {1960}, publisher = {U.S. Geological Survey}, address = {Reston, VA}, keywords = {Geology -- Maps}, url = {http://ngmdb.usgs.gov/Prodesc/proddesc_578.htm}, author = {Neuman, Robert Ballin and Wilson, Robert L} }