Baumler, E. (1968). A century of chemistry. Econ Verlag.
Lua i Stíl Chicago (17ú heag.)Baumler, Ernst. A Century of Chemistry. Dusseldorf: Econ Verlag, 1968.
Lua MLA (9ú heag.)Baumler, Ernst. A Century of Chemistry. Econ Verlag, 1968.
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