0321924215 / 9780321924216 Introductory Chemistry Essentials & Modified MasteringChemistry with Pearson eText -- ValuePack Access Card -- for Introductory Chemistry Package
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0321725999 / 9780321725998 Introductory Chemistry Essentials
0321843606 / 9780321843609 Modified MasteringChemistry with Pearson eText -- ValuePack Access Card -- for Introductory Chemistry