Cita APA (7th ed.)

Roy, M. K., & Ghosh, D. (1982). COBOL Programming. Tata McGraw-Hill.

Cita Chicago (17th ed.)

Roy, M. K., i D. Ghosh. COBOL Programming. New Delhi: Tata McGraw-Hill, 1982.

Cita MLA (9th ed.)

Roy, M. K., i D. Ghosh. COBOL Programming. Tata McGraw-Hill, 1982.