Allahabadi, Rakesh DRAIN-2DX user guide / by ... and Graham H. Powell - Berkeley : University of California, 1988 - 123, 7, 30, 6 p - California. University. College of Engineering. Earthquake Engineering Research Center. Report ; no. EERC-88/06 . Subjects--Topical Terms: Seismology--Computer programs LC Class. No.: TH1095 C3 no. 88/ 06