Free $10 Kindle Textbook Credit

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Receive $10 Kindle Textbook eBook credit for FREE, w/Coupon ETXTBOOK.
To Redeem your code, click the 'Enter code' button and apply it to your account to receive this credit

http://www.amazon.com/gp/feature.html/ref=pe_159950_22250310_pe_button/?docId=1000763191