GC21-7516-2_System_3_Model_6_Operation_Control_Language_and_Disk_Utility_Programs_Reference_Manual_197109.pdf
./bitsavers/pdf/ibm/system3/model6/GC21-7516-2_System_3_Model_6_Operation_Control_Language_and_Disk_Utility_Programs_Reference_Manual_197109.pdf