APA (7th ed.) Citation

(1983). Modern methods for COBOL programmers / John Pugh and Doug Bell.

Chicago Style (17th ed.) Citation

Modern Methods for COBOL Programmers / John Pugh and Doug Bell. 1983.

MLA (9th ed.) Citation

Modern Methods for COBOL Programmers / John Pugh and Doug Bell. 1983.

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