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2002
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Howard, Steve |
Mining
Parque nacional Corcovado : un ecosistema de bosque lluvioso perturbado
1985
Janzen, Daniel H. |
Dirzo, Rodolfo |
Green, Gina C. |
Romero, J. C. |
Stiles, F. G. |
Vega, G. |
Wilson, Don E. |
Breaking new ground : mining, minerals and sustainable development. The report of the MMSD project
2002
Il parco del Ticino
1980
Bogliani, Giuseppe |
Pigazzini, Vittorio |
Reclamation
1976
Lenihan, J. M. A. |
Fletcher, William Whigham |