Evans, William Charles. Trease and Evans' pharmacognosy / Pharmacognosy. William Charles Evans. - 14th ed. - London ; Philadelphia : WB Saunders, c1996. - vii, 585 p. : ill. ; 26 cm. Previously published under title: A text-book of pharmacognosy. Includes bibliographical references and index. ISBN: 9788131200872 LCCN: gb 96-045139 Nat. Bib. No.: GB96-45139 Subjects--Topical Terms: Pharmacognosy. LC Class. No.: RS160 / .T75 1996