Washington, D.C. 1975 Februrary 26-27

Washington, D.C. 1975 April 30-May 1

Washington, D.C. 1975 July 30-31

Washington, D.C. 1975 September 25-26

Washington, D.C. 1975 December 11-12

Washington, D.C. 1976 April 21-22

San Francisco, California 1976 July 7-8

Washington, D.C. 1976 August 25-26

Boston, Massachusetts 1976 October 27-28

Washington, D.C. 1976 December 15-16

Washington, D.C. 1977 July 27-28

Washington, D.C. 1977 October 20-21

Des Plaines, Illinois 1977 December 14-15

Washington, D.C. 1978 February 13-14

Dallas, Texas 1978 May 23-24

Washington, D.C. 1978 August 22-23

Washington, D.C. 1979 February 22-23

Denver, Colorado 1979 May 21-22

Washington, D.C. 1979 August 13-14

Washington, D.C. 1979 December 13-14

Santa Fe, New Mexico 1980 November 7

Washington, D.C. 1983 June 23-24

Austin, Texas 1986 April 24-25