Drewry, G.E.; Jones, K. (1976). «A new ovoviviparous frog, Eleutherodactylus jasperi (Amphibia, Anura, Leptodactylidae) from Puerto Rico». Journal of Herpetology. 10: 161–165. JSTOR1562976. doi:10.2307/1562976
Drewry, G.E.; Jones, K. (1976). «A new ovoviviparous frog, Eleutherodactylus jasperi (Amphibia, Anura, Leptodactylidae) from Puerto Rico». Journal of Herpetology. 10: 161–165. JSTOR1562976. doi:10.2307/1562976