LAWSON, D. Sexual dimorphism and reproduction of the pitviper Porthidium ophryomegas (Serpentes: Viperidae) in Guatemala. Revista de Biología Tropical, [S. l.], v. 44, n. 3B, p. 671–674, 1996. Disponível em: https://revistas.ucr.ac.cr/index.php/rbt/article/view/31026. Acesso em: 17 jul. 2024.