You can purchase at Amazon and Barnes & Nobles as a book/ebook.
http://www.amazon.com/gp/product/B00WC5UOGG
http://www.amazon.com/Vitamins-Minerals-More-Functions-Deficiencies/dp/1508907692/ref=sr_1_1?s=books&ie=UTF8&qid=1430019296&sr=1-1&keywords=Michelle+Bever
http://www.barnesandnoble.com/s/Michelle-Bever?keyword=Michelle+Bever&store=ebook