@misc{indiciaeffe3b570157f, title = {Design of exploration and minerals-data-collection programs in developing areas}, author = {E. D. Attanasi}, year = {1981}, doi = {10.1016/0038-0121(81)90037-9}, url = {https://pubs.usgs.gov/publication/70010351}, note = {Source identifier: 70010351} }