1979-02-05 /BB-4160E-BM/01/sort-development/sort.ver 1980-03-06 /BB-D489E-SB/03/sort.ver 1980-03-06 /BB-H580C-SB_1981/08/sort.ver 1980-03-11 /BB-D489E-SB/04/sort.ver 1980-03-11 /BB-H580C-SB_1981/09/sort.ver 1980-07-24 /BB-4160F-BM/01/sort-source/sort.ver 1980-07-24 /BB-H506D-SM_1983/01/sort/source/sort.ver 1983-10-24 /k20v7d/01/uetp/lib/sort.ver 1983-10-24 /tops20_v6_1_tcpip_installation_tp_ft6/06/uetp/lib/sort.ver 1985-09-24 /BB-H506E-SM/01/sort/source/sort.ver 1985-10-09 /BB-H580E-SB_1985/04/sort.ver 1985-10-09 /cobol12c/04/sort.ver