12. Reference
Brown, K., & Pearce, D. (n.d.). The Causes of Tropical Deforestation: The Economic and Statistical
Analysis ... - Katrina Brown, David William Pearce - كتب Google. كتب Google. Retrieved May 21,
2012, from http://books.google.ae/books?id=qjtmLHY-
Ts4C&printsec=frontcover&hl=ar&source=gbs_ge_summary_&cad=0#v=onepage&q&f=false
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