Pedersen, Stephanie. Echinacea : amazing immunity / by Stephanie Pedersen. - New York : DK Pub., 2000. - 64 p. : col. ill. ; 18 cm. - Natural care library . - Natural care library . Includes index. ISBN: 0789451999 (pb. : alk. paper) LCCN: 99040021 Subjects--Topical Terms: Echinacea (Plants)--Therapeutic use. LC Class. No.: RS165.E4 / P43 2000 Dewey Class. No.: 615/.32399