Data Language/I Disk Operating System/Virtual Storage (DL/I DOS/VS) /
IBM.
APA Citation
International Business Machines Corporation. Data Processing Division. (1981). Data Language/I Disk Operating System/Virtual Storage (DL/I DOS/VS). 4th ed. White Plains, N. Y.: IBM Corp..
MLA Citation
International Business Machines Corporation. Data Processing Division. Data Language/I Disk Operating System/Virtual Storage (DL/I DOS/VS). 4th ed. White Plains, N. Y.: IBM Corp., 1981.
Warning: These citations may not always be complete (especially for serials).