@book{250400,
	author = {Foster, Steven, and Johnson, Rebecca L.},
	title = {Desk reference to nature's medicine /},
	publisher = {National Geographic Society,},
	year = {c2006.},
	address = {Washington, D.C. :},
	note = {At head of title: National Geographic.},
	url = {http://www.loc.gov/catdir/toc/fy0612/2006296961.html}
}