![Cover of the Cooks River activity booklet years 4–6, NSW Government Litter Reduction Campaign, c 1986,](/sites/default/files/styles/max_width_700/public/190325_winter_sl_0001.jpg?itok=gZ2YZkbv)
The Cooks River is fighting back but it needs your help: Cooks River activity booklet Years 4-6 / New South Wales Government Litter Reduction Campaign. 1986
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