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Products highlighted with the symbol  are part of Aspen’s automatic supplementation program. Automatically supplemented titles contain critical updates, supplements, and/or new editions. Enrollment in this program allows these updates to be sent to you automatically on a 30-day, risk-free trial basis, and billed separately. Make certain you have the latest information available—if you’re purchasing online, participate in this program by making certain that automatic supplementation is “checked” when you check out through the web site. You may cancel your participation at any time by writing Aspen Publishers at the following address:

Aspen Publishers
PO Box 990
Frederick, MD 21704

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