0321955226 / 9780321955227 Campbell Biology in Focus, Books A La Carte Edition & Modified MasteringBiology with Pearson eText -- Access Card Package Package consists of: 0321896882 / 9780321896889 Campbell Biology in Focus, Books A La Carte Edition 0321903331 / 9780321903334 Modified MasteringBiology with Pearson eText -- ValuePack Access Card -- for Campbell Biology in Focus