एपीए उद्धरण

Stern, N. B. 1., & Stern, R. A. (2000). The Wiley COBOL syntax reference guide: With IBM and VAX enhancements. New York ; Chichester: John Wiley and Sons.

शिकागो स्टाइल उद्धरण

Stern, Nancy B. 1944-, और Robert A. Stern. The Wiley COBOL Syntax Reference Guide: With IBM and VAX Enhancements. New York ; Chichester: John Wiley and Sons, 2000.

एमएलए उद्धरण

Stern, Nancy B. 1944-, और Robert A. Stern. The Wiley COBOL Syntax Reference Guide: With IBM and VAX Enhancements. New York ; Chichester: John Wiley and Sons, 2000.