Cita APA

Zenith Data Systems Corporation. (1985). MS-DOS, version 3. St. Joseph, Mich.: The Corporation.

Citación estilo Chicago

Zenith Data Systems Corporation. MS-DOS, Version 3. St. Joseph, Mich.: The Corporation, 1985.

Cita MLA

Zenith Data Systems Corporation. MS-DOS, Version 3. St. Joseph, Mich.: The Corporation, 1985.