APA (7. basım) Alıntı

WORTH THOMAS. (1984). COBOL FOR BEGINNERS. PRENTICE -HALL INTERNATIONAL, INC.

Chicago Style (17. basım) Atıf

WORTH THOMAS. COBOL FOR BEGINNERS. NEW JERSEY,USA: PRENTICE -HALL INTERNATIONAL, INC, 1984.

MLA (9th ed.) Atıf

WORTH THOMAS. COBOL FOR BEGINNERS. PRENTICE -HALL INTERNATIONAL, INC, 1984.