Held March 21 to 25, 1981 in Washington, D.C.
WMI Publications
Held March 26 to 31, 1982 in Portland, Oregon
Held March 5 to 9, 1977 in Atlanta, Georgia
Held March 16 to 19, 1975 in Pittsburgh, Pennsylvania
Held March 18 to 21 1973 in Washington, D.C.
Held March 12 to 15 1972 in Mexico City, Mexico
Held March 7 to 10 1971 in Portland, Oregon
Held March 22 to 25 1970 in Chicago, Illinois
Held March 14 to 16 1966 in Pittsburgh, Pa.
Held March 9 to 11 1964 in Las Vegas, Nevada
Held March 8 to 10 1965 in Washington, D. C.
Held March 4 to 6 1963 in Detroit, Michigan
Held March 12 to 14 1962 in Denver, Colorado
Held March 7 to 9 1960 in Dallas, Texas
Held March 18 to 20 1940 in Washington, D. C.
Held March 2 to 4 1959 in New York City
Held March 3 to 5 1958 in St. Louis, Missouri
Held March 5 to 7 1956 in New Orleans, Louisiana
Held March 14 to 16 1955 in Montreal, Quebec
Held March 8 to 10 1954 in Chicago, Illinois
Originally scheduled to meet in New York City, February 2
Held March 13 to 18, 2016 in Pittsburgh, Pennsylvania