Rayol, B.P. and Alvino-Rayol, F. de O. 2019. Initial development of tree species in agroforestry systems in the Lower Amazon, Pará, Brazil. Revista de Ciências Agroveterinárias. 18, 1 (Feb. 2019), 59–64. DOI:https://doi.org/10.5965/223811711812019059.