Schimper, A.F.W. Plant geography upon a physiological basis A.F.W. Schimper; english translation by William R. Fisher revised and edited by Percy Groom, Isaac Bayley Balfour. - New Delhi Ajay Book Service 2006 - 2 v.: ill.; 25cm. ISBN: 8187077441 Subjects--Topical Terms: Ecology Oecology Plant physiology. Dewey Class. No.: 581.1 / S23P