Lugo-López, M. A., Walter Carrera-Murillo, and Juan Bauzá. 1980. “Tropeptic Haplustox: Major Soils of the Plains of Riberalta-Guayaramerin in Northeastern Bolivia”. The Journal of Agriculture of the University of Puerto Rico 64 (4):391-99. https://doi.org/10.46429/jaupr.v64i4.10184.