Fletcher, G. L., Smith, H. O., & Harrow, B. (1929). Beginning chemistry. American book Co.
Lua i Stíl Chicago (17ú heag.)Fletcher, Gustav L., Herbert O. Smith, agus Benjamin Harrow. Beginning Chemistry. New York, Cincinnati [etc.]: American book Co, 1929.
Lua MLA (8ú heag.)Fletcher, Gustav L., et al. Beginning Chemistry. American book Co, 1929.
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