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1ā- Hofmann, Joseph Ehrenfried, 1900-Ngā marau “...Leibniz, Gottfried Wilhelm, Freiherr von, 1646-1716....”
I whakaputaina 1974
Pukapuka -
2ā- Brown, Richard C.Ngā marau “...Leibniz, Gottfried Wilhelm, Freiherr von, 1646-1716....”
I whakaputaina 2012
Pukapuka -
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