Sustainability and the social sciences : A cross-disciplinary approach to integrating environmental considerations into theoretical reorientation / Edited by Egon Becker; Thomas Jahn. - London : Parïs : Zed Books, UNESCO, 1999. - xvi, 336 p. ISBN: 1856497097 No. de Clasificación Universal Decimal: 3.001.1 =20 "1999" SUS.