Dyfyniad APA

Roy, M., & Dastidar D Ghosh. (1989). Cobol programming. Tata McGraw-Hill.

Dyfyniad Arddull Chicago

Roy, M.K, and Dastidar D Ghosh. Cobol Programming. New Delhi: Tata McGraw-Hill, 1989.

Dyfyniad MLA

Roy, M.K, and Dastidar D Ghosh. Cobol Programming. Tata McGraw-Hill, 1989.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.