Students save money by purchasing this bundle which includes the loose-leaf version of Hansen/Mowen�s Cornerstones of Cost Management 4E, and an access code for CNOWv2. Have the tools you need to be successful. A variety of tools are available in CNOWv2, all combined in one easy-to-use resource designed to improve your grades. Some resources get you prepared for class and help you succeed on homework, while others show you specific areas where you can work to improve.