Bi-lingual anthropological book, Crisis Under the Canopy: Tourism and Other Problems..., by Randy Smith, looks at the pros and cons of eco-tourism as a means to support the terribly fragile yet incredibly diverse indigenous tribes of Ecuador's Amazon basin. Originally published in 1993, with alternating English/Spanish pages.
The book also chronicles the way the Ecuadorian government swindled the Huaorani, Tagaeri and other indigenous tribes out of the rights to land with billion-dollar deals with Texaco, British Petroleum and other oil corporations. Judith Kimerling's Amazon Crude, also published in Spanish and English delves even further into these disastrous practices and helped Ecuadorian tribes win a monumental settlement after nearly a decade of trials and postponements.
I was fortunate enough to interview Smith several times from 1994-98, getting some of my most amazing expose pieces ever. Additionally, Kimerling introduced me to Smith as I went to Quito's Rainforest Information Center, (R.I.C) to interview someone completely different.