(1988). Arthur von Kruedener, 1869 - 1951.
Tohutoru Kātū Chicago (17th ed.)Arthur Von Kruedener, 1869 - 1951. 1988.
Tohutoro MLA (9th ed.)Arthur Von Kruedener, 1869 - 1951. 1988.
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Tohutoro APA (7th ed.)