Tohutoro APA (7th ed.)
Koethner, P. (1896). Über Rubidium.
Tohutoru Kātū Chicago (17th ed.)
Koethner, Paul. Über Rubidium. Halle, 1896.
Tohutoro MLA (9th ed.)
Koethner, Paul. Über Rubidium. 1896.
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