| Machines | Time Life International | Tiada | 1974 | tiada maklumat |
| Machines and inventions | [t.p] | Tiada | 1994 | 0-7835-2962-7 |
| Thinking machines | Basil Blackwell | Tiada | 1987 | 0631149538 |
| Knowledge machines | Longman Group Limited | Tiada | 1995 | 0-582-07132-1 |
| The universal encyclopedia of machines | George Allen & Unwin | Tiada | 1967 | |
| Kingfisher child's world encyclopedia: Machines 8 | Larousse | Tiada | 1994 | 1 85697 257 7 |