Engineering Geology of Western United States Urban Centers: Los Angeles, California to Denver, Colorado, June 27 - July 7, 1989 (Field Trip Guidebooks)
Keaton, Jeffrey R.／Morris, Richard／Cobarrubias, Joe／Hansen, John H.／Hart, Mike／Cotton, Bill／Bell, John／Christenson, Gary／Lund, Bill／Bowen, Tim／Higgins, Jerry／Turner, Keith／Hynes, Jeff
