an insight into the encyclopedia of life support systems Mehta, V.B. text Paris The United Nations Educational Scientific and Cultural Organization 2002 monographic V.1 (xxxiv,1226p.) 29cm (Hb) includes bibliographical references and index Sustainable development natural resources- management Atmosphere physics - research Social science research 333.72 9231038591 9789231038594 ENG-99885 DBAD/PUB 20100812163130.0