Wyk, Ben-Erik van Medicinal plants of the world : an illustrated scientific guide to important medicinal plants and their uses / Ben-Erik van Wyk and Michael Wink - Pretoria, South Africa : Briza Publications, c2004. - 480 p. : ill. ; 25 cm. ISBN: 9781875093441 LCCN: Subjects--Topical Terms: Medicinal plantsMateria medicaVegetable LC Class. No.: RS164 / .V295 2004