Microsoft disc operating system (MS-DOS), version 4.0.
Contributors: AST Research, Inc.
Edition: 1st ed.
Publisher: AST Research
Published: 1989
Place of publication: Irvine, Calif
Language: eng
Subjects: MS-DOS (Computer file)
Other titles: Command reference manual.; MS-DOS version 4.0 command reference.
Notes: Cover title: Command reference manual.
Spine title: MS-DOS version 4.0 command reference.
"Command reference 000814-001 A."
"September 1989."
Includes index.