Whittaker, Robert Harding, 1920- Communities and ecosystems / Robert H. Whittaker. - London : The Macmillan Co. ; Collier-Macmillan Ltd., 1970. - xi, 162 p. ill., maps. - Current concepts in biology. A Macmillan series / Ed. : N.H. Giles et al. . - Current concepts in biology . Includes bibliogr. references and index Subjects--Topical Terms: Ecology