| Sustainability: A Comprehensive Foundation Provider: ecampusontario open library Language: English |
| Algna biomasa, dragocen vir surovin in energije Provider: videolectures.net Language: Slovene |
| Handbuchordner Experimento | 10+ Provider: the siemens stiftung media portal Language: German |
| ENERGIA Cap.I°.1 Provider: university of bologna digital library Language: Italian |
| TextBook: Good Agricultural Practices for greenhouse vegetable crops - FAO-ISHS Provider: university of bologna digital library Language: English |
| Trajnost in trajnostni razvoj Provider: videolectures.net Language: Slovene |
| Il Problema dell'Energia in Italia Provider: university of bologna digital library Language: Italian |
| Environmental Science Provider: ecampusontario open library Language: English |
| Chemistry: OpenStax Provider: ecampusontario open library Language: English |
| D.lgs. 3 aprile 2006, n. 152 (Codice dell'ambiente) Provider: university of bologna digital library Language: Italian |