Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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