RICHARD, M. (1987). Microcomputing in cobol: Structured interactive application. SRA.
芝加哥风格引文RICHARD, Martin. Microcomputing in Cobol: Structured Interactive Application. Chicago: SRA, 1987.
MLA引文RICHARD, Martin. Microcomputing in Cobol: Structured Interactive Application. SRA, 1987.
警告：这些引文格式不一定是100％准确.