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List of Issues
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1970: Volume 62
- December 1970 (Volume 62, Issue 12, pp. 2–168)
- November 1970 (Volume 62, Issue 11, pp. 2–104)
- October 1970 (Volume 62, Issue 10, pp. 3–80)
- September 1970 (Volume 62, Issue 9, pp. 2–68)
- August 1970 (Volume 62, Issue 8, pp. 2–79)
- July 1970 (Volume 62, Issue 7, pp. 3–80)
- June 1970 (Volume 62, Issue 6, pp. 2–72)
- May 1970 (Volume 62, Issue 5, pp. 2–59)
- April 1970 (Volume 62, Issue 4, pp. 2–87)
- March 1970 (Volume 62, Issue 3, pp. 2–83)
- February 1970 (Volume 62, Issue 2, pp. 2–68)
- January 1970 (Volume 62, Issue 1, pp. 2–66)
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1969: Volume 61
- December 1969 (Volume 61, Issue 12, pp. 3–88)
- November 1969 (Volume 61, Issue 11, pp. 3–136)
- October 1969 (Volume 61, Issue 10, pp. 3–120)
- September 1969 (Volume 61, Issue 9, pp. 3–96)
- August 1969 (Volume 61, Issue 8, pp. 2–84)
- July 1969 (Volume 61, Issue 7, pp. 2–48)
- June 1969 (Volume 61, Issue 6, pp. 2–56)
- May 1969 (Volume 61, Issue 5, pp. 6–86)
- April 1969 (Volume 61, Issue 4, pp. 2–80)
- March 1969 (Volume 61, Issue 3, pp. 3–84)
- February 1969 (Volume 61, Issue 2, pp. 3–68)
- January 1969 (Volume 61, Issue 1, pp. 3–96)
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1968: Volume 60
- December 1968 (Volume 60, Issue 12, pp. 3–68)
- November 1968 (Volume 60, Issue 11, pp. 3–72)
- October 1968 (Volume 60, Issue 10, pp. 3–72)
- September 1968 (Volume 60, Issue 9, pp. 3–72)
- August 1968 (Volume 60, Issue 8, pp. 3–102)
- July 1968 (Volume 60, Issue 7, pp. 3–94)
- June 1968 (Volume 60, Issue 6, pp. 3–96)
- May 1968 (Volume 60, Issue 5, pp. 3–100)
- April 1968 (Volume 60, Issue 4, pp. 3–112)
- March 1968 (Volume 60, Issue 3, pp. 3–92)
- February 1968 (Volume 60, Issue 2, pp. 3–87)
- January 1968 (Volume 60, Issue 1, pp. 3–93)
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1967: Volume 59
- December 1967 (Volume 59, Issue 12, pp. 5–120)
- November 1967 (Volume 59, Issue 11, pp. 5–125)
- October 1967 (Volume 59, Issue 10, pp. 5–109)
- September 1967 (Volume 59, Issue 9, pp. 5–89)
- August 1967 (Volume 59, Issue 8, pp. 5–121)
- July 1967 (Volume 59, Issue 7, pp. 5–76)
- June 1967 (Volume 59, Issue 6, pp. 5–101)
- May 1967 (Volume 59, Issue 5, pp. 5–141)
- April 1967 (Volume 59, Issue 4, pp. 5–85)
- March 1967 (Volume 59, Issue 3, pp. 5–65)
- February 1967 (Volume 59, Issue 2, pp. 5–97)
- January 1967 (Volume 59, Issue 1, pp. 5–113)
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1966: Volume 58
- December 1966 (Volume 58, Issue 12, pp. 5–84)
- November 1966 (Volume 58, Issue 11, pp. 5–125)
- October 1966 (Volume 58, Issue 10, pp. 5–77)
- September 1966 (Volume 58, Issue 9, pp. 7–120)
- August 1966 (Volume 58, Issue 8, pp. 5–96)
- July 1966 (Volume 58, Issue 7, pp. 5–93)
- June 1966 (Volume 58, Issue 6, pp. 5–109)
- May 1966 (Volume 58, Issue 5, pp. 5–97)
- April 1966 (Volume 58, Issue 4, pp. 5–95)
- March 1966 (Volume 58, Issue 3, pp. 5–74)
- February 1966 (Volume 58, Issue 2, pp. 5–83)
- January 1966 (Volume 58, Issue 1, pp. 5–77)
