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Archive of 1970 Online Issues:

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January 1970; 30 (3): 65 - 112
 March 1970; 30 (4): 113 - 144
April 1970; 30 (5): 145 - 176
 June 1970; 30 (6): 177 - 208
October 1970; 31 (1-2): 1 - 64