TY - RPRT TI - Evaluation of LANDSAT-2 (ERTS) images applied to geologic structures and mineral resources of South America: Type II progress report for period March 14, 1975-June 30, 1975 AU - William D. Carter PY - 1975 UR - https://pubs.usgs.gov/publication/70231227 ID - 70231227 ER -