[1]
J. J. . Silva Haad, “THE SNAKES OF THE GENUS ATRACTUS WAGLER, 1828 (COLUBRIDAE, XENODONTINAE) IN THE COLOMBIAN AMAZONIA”, Rev. Acad. Colomb. Cienc. Ex. Fis. Nat., vol. 28, no. 108, pp. 409–446, Sep. 2004, doi: 10.18257/raccefyn.28(108).2004.2138.