1. ICL Publicity Brochure "The Way Ahead" ICL Publicity Brochure "The Way Ahead"
2. ICL Publicity Pamphlet "Technical overview of 2900 series" ICL Publicity Pamphlet "Technical overview of 2900 series"
3. Burroughs B6700 Reference Manual Form 1058633 Burroughs Corp. Detroit 1972 Burroughs B6700 Reference Manual Form 1058633 Burroughs Corp. Detroit 1972
4. Iliffe J.K. "Basic Machine Principles" American Elsevier 1968 Iliffe J.K. "Basic Machine Principles" American Elsevier 1968