1. A Mandioca na Amazônia;Albuquerque,1969
2. Farming the Amazon: the devastation technique;Anderson,1972
3. Agronomic-Economic Research on Tropical Soils: Annual Report for 1973,1973
4. Aspectos Industriais da Mandioca no Nordeste;BNB,1971
5. The Hungry Planet;Borgstrom,1970