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4出版事項 1982主題 “...Watershed management New Zealand Mataura River....”
図書 -
5出版事項 1978主題 “...Watershed management New Zealand Taranaki....”
逐次刊行物 -
6出版事項 1989主題 “...Watershed management New Zealand...”
図書 -
7出版事項 2012主題 “...Watershed management New Zealand Canterbury....”
図書 -
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13出版事項 2010主題 “...Watershed management New Zealand Waipara River....”
Archived copy available at the National Library of New Zealand
電子媒体 eBook -
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17著者: Williams, Paul W. (Paul Worthing)主題 “...Watershed management New Zealand Auckland (Region)...”
出版事項 1983
図書 -
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