International Computers Limited. Education and Training. (1971). Thinking as a programmer: Basic principles of flowcharting. ICL Education and training, ICL Beaumont.
芝加哥风格引文International Computers Limited. Education and Training. Thinking as a Programmer: Basic Principles of Flowcharting. Old Windsor, Berkshire: ICL Education and training, ICL Beaumont, 1971.
MLA引文International Computers Limited. Education and Training. Thinking as a Programmer: Basic Principles of Flowcharting. ICL Education and training, ICL Beaumont, 1971.
警告：这些引文格式不一定是100％准确.