Öpik, Helgi, 1936- The physiology of flowering plants / Helgi Öpik, Stephen A. Rolfe. - 4th ed. - Cambridge ; New York : Cambridge University Press, 2005. - x, 392 p. : ill. ; 26 cm. Includes bibliographical references and index. ISBN: 0521662516 (hardback) 0521664853 (pbk.) LCCN: 2004054606 Subjects--Topical Terms: Plant physiology. LC Class. No.: QK711.2 / OPI 2005 Dewey Class. No.: 571.2