Barbosa, D. 1992. Distribution of Anadenanthera macrocarpa (Benth.) Brenan Seedlings in an Area of the Caatinga of Northeastern Brazil. Boletim de Botânica. 13, (jun. 1992), 1–10. DOI:https://doi.org/10.11606/issn.2316-9052.v13i0p1-10.