Bell, Peter Robert. Green plants : their origin and diversity / Peter R. Bell, Alan R. Hemsley. - 2nd ed. - Cambridge, UK ; New York : Cambridge University Press, 2000. - vii, 349 p. : ill. ; 26 cm. Includes bibliographical references (p.[327]-329). ISBN: 0521641098 (hbk.) 0521646731 (pbk.) LCCN: 99047854 Subjects--Topical Terms: Botany.Plants--Classification.Plants--Evolution.Plants--Variation. LC Class. No.: QK641 / .B4 2000 Dewey Class. No.: 581.3/8