Pfaffenberger, B. (1991). PC Tools 7 made easy. Osborne McGraw-Hill.
芝加哥风格引文Pfaffenberger, Bryan. PC Tools 7 Made Easy. Berkeley ; Sydney: Osborne McGraw-Hill, 1991.
MLA引文Pfaffenberger, Bryan. PC Tools 7 Made Easy. Osborne McGraw-Hill, 1991.
警告：这些引文格式不一定是100％准确.