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1ā- Johnston, R. D. (Robert Douglas)Ngā marau “...Eucalyptus Australia Identification....”
I whakaputaina 1981
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2I whakaputaina 1986Ngā marauPukapuka
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3I whakaputaina 1991Ngā marau “...Eucalyptus Australia Harvesting....”
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4I whakaputaina 1981Ngā marau “...Eucalyptus Diseases and pests Australia Congresses....”
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