APA aipamena

James A Saxon. (1971). COBOL: A self insturctional manual. Newjersey.

Chicago Style aipamena

James A Saxon. COBOL: A Self Insturctional Manual. Newjersey, 1971.

MLA aipamena

James A Saxon. COBOL: A Self Insturctional Manual. Newjersey, 1971.