Robert Barefoot 7 Book Lot Disease Conspiracy Coral Calcium Vitamin D

7 Book Lot on the subject of Coral Calcium, and the story of gold, by Robert R Barefoot, includes: The Disease Conspiracy The Calcium Factor Barefoot on Coral Calcium Death by Diet Barefoot on Vitamin D Let's Cure Humanity If it Glitters, the Story of Gold Pre-owned condition: some wear on covers and pages (small scratches/creases). See photos.