Farina, M. V. (1968). Cobol simplified. Prentice-Hall.
芝加哥风格引文Farina, Mario V. Cobol Simplified. Englewood Cliffs, N.J.: Prentice-Hall, 1968.
MLA引文Farina, Mario V. Cobol Simplified. Prentice-Hall, 1968.
警告：这些引文格式不一定是100％准确.
APA引文