Graf, Mike. Great Smoky Mountains National Park: Ridge Runner Rescue; Adventures with the Parkers. Guilford, CT: Globe Pequot Press, 2012.

Graf, Mike, and Marjorie Leggitt. Great Smoky Mountains National Park: Ridge Runner Rescue. Fulcrum Publishing, 2009.

Graf, Mike. Great Smoky Mountains National Park. Bridgestone Books, 2003.