Carver, D. K. (1985). Beginning structured COBOL (2nd ed.). Brooks/Cole Pub. Co..
芝加哥风格引文Carver, D. K. Beginning Structured COBOL. 2nd ed. Monterey, Calif.: Brooks/Cole Pub. Co., 1985.
MLA引文Carver, D. K. Beginning Structured COBOL. 2nd ed. Brooks/Cole Pub. Co., 1985.
警告：这些引文格式不一定是100％准确.