Issue 2 - November 1983
Issue 3 - October 1972
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Issue provisional - November 1976
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Issue 1 - September 1977
Issue 1 - February 1979
Issue 3 - July 1990
Issue 1 - April 1985
Issue 1 - January 1988
Issue 1 - May 1980
Issue 1 - July 1983
Issue 1 - July 1983
Issue 2 - July 1982
PDF size: 5.5 Mb
Issue 2 - July 1980
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Issue 1 - December 1980
Issue 2 - February 1985
Issue 1 - September 1984
Issue 5 - February 1985