visto da Tullio Pascoli
ALLARMISMO E OTTIMISMO (Julian Simon) http://www.libreriauniversitaria.it/allarmismo-ottimismo-confronto-ambientalista-economista/libro/9788870218626
SCARSITA’ O ABBONDANZA? (Julian Simon) http://www.libreriauniversitaria.it/scarsita-abbondanza-dibattito-ambiente-economia/libro/9788870217346
THE NEW CONSUMERS http://www.amazon.com/New-Consumers-Influence-Affluence-Environment-ebook/dp/B005JA2HN4/ref=sr_1_5?s=books&ie=UTF8&qid=1390655518&sr=1-5
PERVERSE SUBSIDIES http://www.amazon.com/Perverse-Subsidies-Dollars-Undercut-Environment/dp/1559638354/ref=sr_1_8?s=books&ie=UTF8&qid=1390655518&sr=1-8