APA

Roy M. K., Dastidar D. G., . (1989). Cobol programming. New Delhi: Tata McGraw-Hill.

Chicago

Roy M K, Dastidar Debabrata Ghosh, . 1989. Cobol programming. New Delhi: Tata McGraw-Hill.

Harvard

Roy M. K., Dastidar D. G., . (1989). Cobol programming. New Delhi: Tata McGraw-Hill.

MLA

Roy M K, Dastidar Debabrata Ghosh, . Cobol programming. New Delhi: Tata McGraw-Hill. 1989.