Tohutoro APA (7th ed.)
Unger, H. (1949). Wilhelm Conrad Röntgen. Hoffmann & Campe.
Tohutoru Kātū Chicago (17th ed.)
Unger, Hellmuth. Wilhelm Conrad Röntgen. Hamburg: Hoffmann & Campe, 1949.
Tohutoro MLA (9th ed.)
Unger, Hellmuth. Wilhelm Conrad Röntgen. Hoffmann & Campe, 1949.
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