Only one Earth : the care and maintenance of a small planet: an unofficial report commissioned by the Secretary-General of the United Nations Conference on the Human Environment - Ward, Barbara, 1914-; Dubos, Rene J. (Rene Jules), 1901-; United Nations Conference on the Human Environment (1972 : Stockholm, Sweden) (Harmondsworth, England. : Penguin Books, 1974)
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Keywords: Ecology; Environmental health; Human ecology