(1957). Uedle metaller i edlere form / St. Tschudi Madsen.
Tohutoru Kātū Chicago (17th ed.)Uedle Metaller I Edlere Form / St. Tschudi Madsen. 1957.
Tohutoro MLA (9th ed.)Uedle Metaller I Edlere Form / St. Tschudi Madsen. 1957.
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