- Cipolla , Carlo M , ed. The Fontana Economic History of Europe, The Industrial Revolution (3) 10
Bibliography
- Cipolia , M , ed. 1978 . The Fontana Economic History of Europe, The Industrial Revolution (3) , England : Fontana/Collins .
- 1987 . Pretoria News , 23 June
- Lecturer, Unit for Cognitive Development, Vista University, Pretoria.