The Primary Production of the Biosphere: A Symposium Given at the Second Congress of the American Institute of Biological Sciences || No Deposit: No Return, Man and His Environment: A View toward Survivalby Huey D. Johnson;Ecological Crisis, Readings for Survivalby Glen A. Love; Rhoda M. Love;Global Ecology: Readings toward a Rational Strategy for Manby John P. Holdren; Paul R. Ehrlich;The Everlasting Universe, Readings on the Ecological Revolutionby Lorne J. Forstner; John H. Todd