- Supreme Court of the United States | Monday, January 25, 1971 | Cited 0 times
- Supreme Court of Pennsylvania | Friday, September 18, 1992 | Cited 0 times
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- Nebraska Supreme Court | Friday, July 23, 1982 | Cited 0 times
- Supreme Court of the United States | Wednesday, June 14, 1978 | Cited 0 times