| Biology: 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 |
| Sustainability: A Comprehensive Foundation Provider: ecampusontario open library Language: English |
| Knowing Home: Braiding Indigenous Science with Western Science, Book 1 Provider: ecampusontario open library Language: English |
| Practical Meteorology: An Algebra-based Survey of Atmospheric Science Provider: ecampusontario open library Language: English |
| Astronomy: OpenStax Provider: ecampusontario open library Language: English |
| TextBook: Good Agricultural Practices for greenhouse vegetable crops - FAO-ISHS Provider: university of bologna digital library Language: English |
| (eco)Logical: Greening the 21st Century City Provider: videolectures.net Language: English |
| Europe in figures - Eurostat yearbook 2009 Provider: university of bologna digital library Language: English |
| Fundamentals of Business Provider: ecampusontario open library Language: English |