Conlon, T. (1989). Programming in PARLOG. Addison-Wesley Pub. Co..
芝加哥风格引文Conlon, Tom. Programming in PARLOG. Wokingham, England ; Reading, Mass.: Addison-Wesley Pub. Co., 1989.
MLA引文Conlon, Tom. Programming in PARLOG. Addison-Wesley Pub. Co., 1989.
警告：这些引文格式不一定是100％准确.