David Busch's Compact Field Guide for the Nikon D3100 (David Busch's Digital Photography Guides): Busch, David D.: 9781435459946: Amazon.com: Books
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Nikon D3100 (The Expanded Guide): Sparks, Jon: 9781907708107: Amazon.com: Books
Amazon.com: Nikon D3100 14.2MP Digital SLR Camera Body Only - (Black) (Kit Box, No Lens) (International Version) (Renewed) : Electronics
Nikon D3100 For Dummies: King, Julie Adair: 9781118004722: Amazon.com: Books