APA (7th ed.) Citation

Microsoft COBOL compiler for the MS-DOS operating system: User's guide.

Chicago Style (17th ed.) Citation

Microsoft COBOL Compiler for the MS-DOS Operating System: User's Guide. [Bellevue, Wash.].

MLA (9th ed.) Citation

Microsoft COBOL Compiler for the MS-DOS Operating System: User's Guide.

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