APA引文

Roy, M. K. D. (1991). COBOL Programming.

Chicago Edition Citation

Roy, M K; Dastidar. COBOL Programming. Tata Mc Graw Hill: New Delhi, 1991.

MLA引文

Roy, M K; Dastidar. COBOL Programming. 1991.

警告：這些引文格式不一定是100％准確.