| 100 Things to Know about Inventions • anticexlibris.ro | 46.98 RON |
| 100 things to know about saving the plan | VARIOUS • carturesti.ro | 61.00 RON |
| 100 Things to Know About the Unknown, Hardback - Micaela Tapsell • elefant.ro | 72.99 RON |
Looks at 100 inventions from throughout history.
