Landis, Robyn. Herbal defence : against illness and ageing a practical guide to healing with herbs / Robyn Landis with Karta Purkh Singh Khalsa. - London : Thornsons , 1997 - xii, 554 p. ; 23 cm. Originally published : as Herbal Defences. New York : Warner. ISBN: 0722536550 RM63.63 Subjects--Topical Terms: Herbals. National Library of Medicine Call No.: WB925