Grasslands, systems analysis and man / edited by A. I. Breymeyer and George M. Van Dyne - Cambridge [Eng.] : Cambridge University Press, 1980 - xxiv, 950 p. : ill. ; 24 cm. - International Biological Programme ; 19 . Includes index ISBN: PND 75.00 Subjects--Corporate Names: International Biological Programme Subjects--Topical Terms: Grassland ecologyGrassland ecology--Mathematical models Dewey Class. No.: 574.5264