APA-ийн эшлэл(7 дахь хэвлэлт)

ROY MALAY K. (1992). COBOL PROGRAMMING INCLUDING MS-COBOL AND COBOL-85 (2.). TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

ROY MALAY K. COBOL PROGRAMMING INCLUDING MS-COBOL AND COBOL-85. 2. NEW DELHI: TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED, 1992.

MLA -ийн эшлэл (9 дэх хэвлэлт)

ROY MALAY K. COBOL PROGRAMMING INCLUDING MS-COBOL AND COBOL-85. 2. TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED, 1992.