Vanzolini, P. E. Environmental Temperature and Number of Body Annuli in Amphisbaena Alba: Notes on a Cline (Sauria, Amphisbaenidae). Pap. Avulsos Zool. 1968, 21 (1-28 (1967-1968), 231-241. https://doi.org/10.11606/0031-1049.1968.21.p231-241.