1979-09-24 /BB-4160E-BM/01/sort-doc/sort.bd 1981-07-14 /BB-4160F-BM/01/sort-documentation/sort.bd 1983-09-01 /BB-H506D-SM_1983/01/sort/documentation/sort.bd 1984-02-13 /BB-Z759A-SM/01/documentation/sort.bd 1985-10-07 /BB-H506E-SM/01/sort/documentation/sort.bd 1985-10-10 /BB-H580E-SB_1985/01/sort.bd 1985-10-10 /cobol12c/01/sort.bd