Petrucci, R. H., & Harwood, W. S. (1997). General chemistry: Principles and modern applications (7th ed.). Prentice Hall.
Chicago Style (17th ed.) ZitazioaPetrucci, Ralph H., eta William S. Harwood. General Chemistry: Principles and Modern Applications. 7th ed. Upper Saddle River, N.J.: Prentice Hall, 1997.
MLA (9th ed.) ZitazioaPetrucci, Ralph H., eta William S. Harwood. General Chemistry: Principles and Modern Applications. 7th ed. Prentice Hall, 1997.
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