CAMPBELL, Jonathan A. The distribucion, variation, natural history, and relationships of Porthidium barbouri (Viperidae). ACTA ZOOLÓGICA MEXICANA (N.S.), [S. l.], n. 26, p. 1–32, 1988. DOI: 10.21829/azm.1988.25262034. Disponível em: https://azm.ojs.inecol.mx/index.php/azm/article/view/2034. Acesso em: 17 ene. 2025.