APA (7e ed.) Bronvermelding

International Computers Limited. Education and Training. (1971). Thinking as a programmer: Basic principles of flowcharting. ICL Education and training, ICL Beaumont.

Chicago (17e ed.) Bronvermelding

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 (8e ed.) Bronvermelding

International Computers Limited. Education and Training. Thinking as a Programmer: Basic Principles of Flowcharting. ICL Education and training, ICL Beaumont, 1971.