トリスタン・ダ・クーニャ (探検家) (Japanese Wikipedia)

Analysis of information sources in references of the Wikipedia article "トリスタン・ダ・クーニャ (探検家)" in Japanese language version.

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934^th place

57^th place

google.co.jp

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Foundations of the Portuguese empire, 1415-1580 by Bailey Wallys Diffie p.233 [1]