00302nam a2200145Ia 4500020001500000082002300015100002300038245002500061250000800086260003000094300000600124500001600130500000500146700000500151  a1555443796  a518.5425bSa252.SG  aSAS Institute Inc.  aSAS/GRAPH softwareb  a1st  aNorth CarolinabSASc1990  a   a"Version 6"  a  a