D. Colorado June 1979 casesBrennan v. ZapienGomez v. Colorado State Parole Bd.Jackson v. MooreHalliburton Co. v. Texana Oil Co., Inc.United States v. BestAetna Cas. Sur. Co. v. SamsonHarris v. Ralston Purina Co.Wilt v. GTE Intern. Systems Corp.Ohio v. Peterson, Lowry, Rall, Barber & Ross