एपीए उद्धरण

Roy, M., & Dastidar, G. D. (1997). COBOL programming: Problems and solutions. Tata McGraw Hill.

शिकागो स्टाइल उद्धरण

Roy, M.K, और Ghosh D. Dastidar. COBOL Programming: Problems and Solutions. New Delhi: Tata McGraw Hill, 1997.

एमएलए उद्धरण

Roy, M.K, और Ghosh D. Dastidar. COBOL Programming: Problems and Solutions. Tata McGraw Hill, 1997.