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Archive of 1980 Online Issues:

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February 1980; 20 (1): 3 - 112
 April 1980; 20 (2): 114 - 221
June 1980; 20 (3 Part 1): 226 - 388
June 1980; 20 (3 Part 2): 1 - 60
 August 1980; 20 (4): 392 - 500
October 1980; 20 (5 Part 1): 504 - 614
 November 1980; 20 (5 Part 2): 3 - 292
December 1980; 20 (6): 616 - 724