Grant, Chapman. “THE HERPETOLOGY OF CAJA DE MUERTOS ISLAND AND CARDONA KEY, PORTO RICO”. The Journal of Agriculture of the University of Puerto Rico 16, no. 1 (January 1, 1932): 47–49. Accessed December 5, 2022. https://revistas.upr.edu/index.php/jaupr/article/view/15026.