Learn DOS 3.3 in just 4 hours!
Subtitle: self-placed tutorial learning guide.
Contributors: National Learning Systems (Firm : U.S.)
Series: MicroTutor self-paced tutorial
Publisher: National Learning Systems
Published: 1991
Place of publication: Scranton, Pa. (925 Oak St., Scranton 18515)
Language: eng
Number of pages: 21
Subjects: MS-DOS (Computer file); Operating systems (Computers)
Notes: "900145"--P. [4] of cover.