Copy: 1
v. 1, no. 1-4
v. 10, no. 6-9
v. 11, no. 1-6, 8-9
v. 12, no. 1-v. 29, no. 10
v. 30, no. 1-3, 5,5-6, 8-12
v. 31, no. 1-v. 39, no. 5
v. 39, no. 8-11
v. 40, no. 1 (Mar-Jun 1959
Nov-Dec 1968
Jan-Nov 1969
Jan 1970-Dec 1987
Jan-Mar, May-Dec 1988
Jan 1989-Apr 1997
Aug-Nov 1997)
v. 34, no. 7 (Jul 1992) ; v. 35, no. 8 (Aug 1993) ; v. 36, no. 10 (Oct 1994) ; v. 38, no. 3, 8 (Mar, Aug 1996) lacking
v. 40, no. 1-3, 5, 7-12
v. 41, no. 1-2, 4-12
v. 42, no. 3-4, 6-12
v. 43, no. 1-v. 44, no. 4 (Jan-Mar, May, Jul-Dec 1998
Jan-Feb, Apr-Dec 1999
Mar-Apr, Jun-Dec 2000
Jan 2001-Apr 2002)
v. 44, no. 6 (Jun 2002)
v. 44, no. 9 (Sep 2002)-v. 45, no. 6 (Jun 2003)
v. 45, no. 9 (Sep 2003)-v. 45, no. 11 (Nov 2003)
v. 46, no. 1 (Jan 2004)
v. 46, no. 3 (Mar 2004)-v. 47, no. 4 (Apr 2005)
v. 47, no. 7 (Jul 2005)-v. 47, no. 8 (Aug 2005)
v. 47, no. 10 (Oct 2005)-v. 47, no. 11 (Nov 2005)
v. 48, no. 1 (Jan 2006)-v. 48, no. 3 (Mar 2006)
v. 48, no. 5 (May 2006)-v. 49, no. 8 (Aug 2007)
v. 49, no. 10 (Oct 2007)
v. 49, no. 12 (Dec 2007)-v. 50, no. 7 (Jul 2008)
v. 50, no. 9 (Sep 2008)-v. 50, no. 12 (Dec 2008)
v. 51, no. 2 (Feb 2009)