1920s
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1970
1971
1972
January
February
March
April
May
June
July
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September
October
Vol. 097 Issue 001 (October 6 1972)
Vol. 097 Issue 002 (October 13 1972)
Vol. 097 Issue 003 (October 20 1972)
Vol. 097 Issue 004 (October 27 1972)
November
December
1973
1974
1975
1976
1977
1978
1979
1980s
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