Geology, hydrology, and engineering aspects of the Super Conducting Super Collider site, Ellis County, Texas : field trip guidebook, October 28, 1990, Geological Society of America 1990 annual meeting
field trip leaders: Donald F. Reaser, Priscilla P. Nelson, Joe C. Yelderman ; 1990 GSA annual meeting field trip chairmen: Robert T. Clarke and Kent C. Nielsen