- Court of Appeals for the Eighth Circuit | Tuesday, October 24, 1972 | Cited 0 times
- Court of Appeals for the D.C. Circuit | Friday, May 10, 1968 | Cited 0 times
- Supreme Court of Colorado | Monday, December 9, 1974 | Cited 0 times
- Supreme Court of the United States | Monday, December 20, 1971 | Cited 0 times