WD Pennsylvania December 1980 casesGeneral Teamsters, Chauffeurs, Helpers and Warehousemen Union of America v. Lawrence-Mercer County Builders Ass'nSpiridigliozzi v. Bethlehem Mines Corp. Cambria Div.Messenger v. Bucyrus-Erie Co.Mifflin Energy Sources, Inc. v. BrooksBolanos v. Gulf Oil Corp.Richardson v. MillerUnited States v. Williams.Forbes Health Systems v. Harris