Knight's Ferry Guidebooks
A Climber's Guide to the Sonora Pass HighwayBrad Young and Steve Dawson (2013) / Maximus Press
A Great book describing climbs along highway 108. They have gone to great detail to ensure that their topos are excellent, their information is correct, and their ratings and climbs are fair. A good resource associated with this book is their website which contains many updates to the book, as well as new climbs in the area.