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181I whakaputaina 1974Ngā marau “...Oil pollution of rivers, harbors, etc....”
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182I whakaputaina 1974Ngā marau “...Oil pollution of rivers, harbors, etc....”
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183
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184I whakaputaina 1974Ngā marau “...Thermal pollution of rivers, lakes, etc. Environmental aspects Congresses....”
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185
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186
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187
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188
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189
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190
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191
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192I whakaputaina 1991Ngā marau “...Sewage disposal in rivers, lakes, etc....”
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193ā- Oxenham, Stephen, 1953-Ngā marau “...Rivers New Zealand South Wairarapa District....”
I whakaputaina 1993
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194I whakaputaina 2014Ngā marauPukapuka
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195ā- Langham, Ian, 1942-Ngā marau “...Rivers, W. H. R. (William Halse Rivers), 1864-1922....”
I whakaputaina 1981
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196
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197
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198I whakaputaina 1978Ngā marauPukapuka
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199I whakaputaina 1977Ngā marau “...Wild and scenic rivers New Zealand....”
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200I whakaputaina 1972Ngā marau “...Rivers Congresses....”
E hui ana Pukapuka