1977
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|---|---|
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February
February 1977; 28 (1): 1 - 238 |
April
April 1977; 28 (2): 241 - 517 |
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June
June 1977; 28 (3): 519 - 773 |
August
August 1977; 28 (4): 775 - 1070 |
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October
October 1977; 28 (5): 1071 - 1245 |
December
December 1977; 28 (6): 1247 - 1422 |