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1
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2
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3
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4出版 1982主題 “...Watershed management New Zealand Mataura River....”
圖書 -
5出版 1978主題 “...Watershed management New Zealand Taranaki....”
序列 -
6出版 1989主題 “...Watershed management New Zealand...”
圖書 -
7出版 2012主題 “...Watershed management New Zealand Canterbury....”
圖書 -
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9
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10
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11
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12
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13出版 2010主題 “...Watershed management New Zealand Waipara River....”
Archived copy available at the National Library of New Zealand
電子 電子書 -
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17由 Williams, Paul W. (Paul Worthing)主題 “...Watershed management New Zealand Auckland (Region)...”
出版 1983
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20