User's Guide to Natural Therapies for Cancer Prevention and ControlAbram Hoffer, Jack ChallemHäftad, 200482 kr
User's Guide to Natural Treatments for Lyme DiseaseJames Gormley, Caren F. Tishfield, Jack ChallemInbunden, 2006189 kr
User's Guide to Vitamins & Minerals (16pt Large Print Edition)Jack Challem, Liz BrownHäftad, 2010280 kr