| ¹ | 50 Things We Can Do to Save the Planet Barbara Lord |
³ | Clean Up Australia www.cleanup.com.au |
4 | Surfrider Foundation www.surfrider.org.au |
| ² | http://www.verdant.net/nofoam.htm |
| ¹ | Surfrider Foundation www.surfrider.org.au |
³ | Australian Marine Conservation Society www.amcs.org.au |
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| ² | Clean Up Australia www.cleanup.com.au |
4 | Global Marine Litter Information Gateway |