1972
January January 1972; 51 (1): 3 - 207	March March 1972; 51 (2): 213 - 678
May May 1972; 51 (3): 685 - 882	July July 1972; 51 (4): 885 - 1106
September September 1972; 51 (5): 1111 - 1516	November November 1972; 51 (6): 1521 - 1688