Copy: 1
v. 1, no. 6 (Mar 1968)
v. 1, no. 8 (Jul 1968)-v. 2, no. 3 (Oct 1968)
v. 2, no. 7 (Mar 1969)-v. 2, no. 9 (Jun 1969)
v. 3, no. 2 (Oct 1969)-v. 3, no. 4 (Dec 1969)
v. 4, no. 2 (Mar 1970)-v. 4, no. 5 (Jul 1970)
v. 4, no. 9 (Nov 1970)-v. 5, no. 2 (Feb 1971)
v. 5, no. 4 (May 1971)-v. 6, no. 1 (Jan 1972)
v. 6, no. 4 (Apr 1972)-v. 6, no. 6 (Jun 1972)
v. 7, no. 10 (Nov/Dec 1973)-v. 8, no. 2 (Feb 1974)
v. 8, no. 6 (Jun/Jul 1974)-v. 8, no. 7 (Aug 1974)
v. 8, no. 10 (Nov/Dec 1974)-v. 9, no. 1 (Mar/Apr 1975)
v. 9, no. 4 (Jul/Aug 1975)-v. 12, no. 1 (Jan 1978)
v. 12, no. 3 (Mar 1978)-v. 15, no. 6 (Jul 1981)
v. 15, no. 8 (Sep 1981)-v. 15, no. 11 (Jan 1982)
v. 16, no. 3 (Mar 1982)-v. 16, no. 4 (Apr 1982)
v. 16, no. 6 (Jun 1982)-v. 17, no. 1 (Jan 1983)
v. 17, no. 3 (Mar 1983)-v. 20, no. 11 (Nov 1986)
v. 21, no. 3 (Mar 1987)-v. 21, no. 6 (Jul 1987)
v. 21, no. 8 (Sep 1987)-v. 21, no. 9 (Oct 1987)
v. 22, no. 1 (Jan 1988)-v. 22, no. 3 (Mar 1988)
v. 22, no. 6 (Jun 1988)-v. 22, no. 7 (Sep 1988)
v. 24, no. 10 (Oct 1991)-v. 25, no. 6/7 (Jun/Jul 1992)
v. 25, no. 9 (Sep 1992)-v. 26, no. 2 (Feb 1993)
v. 26, no. 4 (Apr 1993)-v. 33, no. 6 (Jun 2000)
v. 33, no. 8 (Aug 2000)-v. 34, no. 11 (Nov 2001)
v. 35, no. 5 (May 2002)-v. 39, no. 17 (Oct 2004)-Aug 2005
Nov 2005-Jun 2008
Aug 2008-Oct 2008
Feb 2009-Mar 2009
May 2009-Jul 2009
Sep 2009-Jun 2010
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