Tohutoro APA (7th ed.)
Timm, J. A. (1956). General Chemistry. McGraw-Hill.
Tohutoru Kātū Chicago (17th ed.)
Timm, John Arrend. General Chemistry. Nueva York, EUA: McGraw-Hill, 1956.
Tohutoro MLA (9th ed.)
Timm, John Arrend. General Chemistry. McGraw-Hill, 1956.
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