Zumdahl, S. S. (1995). Chemical principles (2nd ed.). D.C. Heath.
Lua i Stíl Chicago (17ú heag.)Zumdahl, Steven S. Chemical Principles. 2nd ed. Lexington, Mass.: D.C. Heath, 1995.
Lua MLA (8ú heag.)Zumdahl, Steven S. Chemical Principles. 2nd ed. D.C. Heath, 1995.
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