Thomaz, E. L., & CNPq. (2007). Land use dinamics and soil degradation in the Guabiroba catchment – Guarapuava/PR. UFPR.
Cita Chicago Style (17a ed.)Thomaz, Edivaldo Lopes, y CNPq. Land Use Dinamics and Soil Degradation in the Guabiroba Catchment – Guarapuava/PR. UFPR, 2007.
Cita MLA (9a ed.)Thomaz, Edivaldo Lopes, y CNPq. Land Use Dinamics and Soil Degradation in the Guabiroba Catchment – Guarapuava/PR. UFPR, 2007.