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Published: May 9, 1968

Published: May 8, 1969

Published: May 8, 1970

Published: May 9, 1972

Published: June 16, 1972

Published: May 9, 1973

Published: May 9, 1974

Published: May 9, 1975

Published: May 8, 1976

Published: May 8, 1977

Published: May 8, 1978

Published: May 8, 1979

Published: May 8, 1980

Published: May 8, 1981

Published: May 8, 1982

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