TY - RPRT TI - Argon geochronology of late Pleistocene to Holocene Westdahl volcano, Unimak Island, Alaska AU - Andrew T. Calvert AU - Richard B. Moore AU - Robert G. McGimsey PY - 2005 DO - 10.3133/pp1709d UR - https://pubs.usgs.gov/publication/pp1709D ID - pp1709D ER -