APA (7th ed.) Citation

Bloom, E. P. (1986). COBOL: The language of business. Tab Books.

Chicago Style (17th ed.) Citation

Bloom, Eric P. COBOL: The Language of Business. Blue Ridge Summit, PA: Tab Books, 1986.

MLA (9th ed.) Citation

Bloom, Eric P. COBOL: The Language of Business. Tab Books, 1986.