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1द्वारा Redmond, Philip Ivanविषय “...Coal mines and mining New Zealand Grey District....”
प्रकाशित 1978
थीसिस पुस्तक -
2द्वारा Richardson, Lenविषय “...Coal mines and mining New Zealand Grey District....”
प्रकाशित 1968
थीसिस पुस्तक -
3
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4द्वारा Wright, Les, 1950-2013विषय “...Coal mines and mining New Zealand Grey District History....”
प्रकाशित 2000
पुस्तक -
5प्रकाशित 2003विषय “...Coal mines and mining New Zealand Grey District History....”
पुस्तक -
6
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7द्वारा Ewen, Peter, 1958-विषय “...Coal mines and mining New Zealand Grey District History....”
प्रकाशित 2006
पुस्तक -
8
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9प्रकाशित 1993विषयपुस्तक
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10
