Register Your Serial Number
If you purchased Carbaugh Xtra! with your textbook from the bookstore, you must first register using the access code within the Carbaugh Xtra! slimpack. This access code identifies you as a purchaser of Carbaugh Xtra!.
When you click on the link below, you will be asked first to enter your access code and a new or existing user name. Take care to enter your access code exactly as it appears within the slimpack.
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