TY - RPRT TI - Geology for a changing world: Summary of USGS Circular 1172: A science strategy for the Geologic Division of the U.S. Geological Survey, 2000-2010 AU - P. Patrick Leahy PY - 1999 DO - 10.3133/70220358 UR - https://pubs.usgs.gov/publication/70220358 ID - 70220358 ER -