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February
February 1976; 27 (1): 1 - 188 |
April
April 1976; 27 (2): 189 - 394 |
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June
June 1976; 27 (3): 397 - 577 |
August
August 1976; 27 (4): 579 - 842 |
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October
October 1976; 27 (5): 843 - 1115 |
December
December 1976; 27 (6): 1117 - 1386 |