APA (7th ed.) Citation

MCGRATH, R. R. Essentials of Cobol Programing. -.

Chicago Style (17th ed.) Citation

MCGRATH, Roger R. Essentials of Cobol Programing. -.

MLA (8th ed.) Citation

MCGRATH, Roger R. Essentials of Cobol Programing. -.

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