Strafford, G. A. Essentials of plant physiology / by G. A. Strafford. - London : Heinemann Educational Books LTD, 1973. - viii, 224 p. : ill. ; 23 cm. Inculdes index Includes bibliographical references: p.212-213. ISBN: 0435608525 (pbk.) Subjects--Topical Terms: Plant physiology.