Flaschen, S. S. (1965). Search and research: The story of the chemical elements. Allyn and Bacon.
Lua i Stíl Chicago (17ú heag.)Flaschen, Steward S. Search and Research: The Story of the Chemical Elements. Boston: Allyn and Bacon, 1965.
Lua MLA (8ú heag.)Flaschen, Steward S. Search and Research: The Story of the Chemical Elements. Allyn and Bacon, 1965.
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