APA (7th ed.) Citation

Microsoft COBOL: Version 4.5 for MS OS/2 and MS-DOS operating systems.

Chicago Style (17th ed.) Citation

Microsoft COBOL: Version 4.5 for MS OS/2 and MS-DOS Operating Systems. Redmond, WA.

MLA (9th ed.) Citation

Microsoft COBOL: Version 4.5 for MS OS/2 and MS-DOS Operating Systems.

Warning: These citations may not always be 100% accurate.