| biotica-moldova.org | Biotica Ecological Society |
| icheme.org | IChemE EPSG Knowledge Management Database |
| cciw.ca | Canadian Coastal Science and Engineering Association (CCSEA) |
| ipep.org | Institute of Professional Environmental Practice |
| ies-uk.org.uk | Institution of Environmental Sciences |
| iami.org | Environmental Assessment Association (EAA) |
| georgewright.org | The George Wright Society |
| esaa.org | Environmental Services Association of Alberta (ESAA) |
| environmenthouse.ch | Geneva Environment Network |
| elaw.org | Environmental Law Alliance Worldwide (E-LAW) |
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