Heal O W Ed. Production ecology of British moors and montane grasslands Heal O W Ed.; Perkins D F Ed. - Berlin Springer-Verlag 1978 - xii, 426p. cm. - Ecological studies analysis and synthesis; 27 . Standard No.: 51348 Source: Textual Subjects--Topical Terms: GramineaeBotany Dewey Class. No.: I786:5.3, L8