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* Ebbin, Darrell, D. (1990). General Chemistry, 3th Ed. Boston: Houghton Mifflin Co. ISBN 0-395-43302-9
* Pauling, Linus (1970). General Chemistry. Nueva York: Dover Publications, Inc. ISBN 0-486-65622-5
* Pauling, Linus (1970). General Chemistry. Nueva York: Dover Publications, Inc. ISBN 0-486-65622-5