Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). The Eponym Dictionary of Reptiles. Baltimore: Johns Hopkins University Press. xiii + 296 pp. ISBN978-1-4214-0135-5. ("Eew", p. 81; "Ernest", p. 85; "Williams, E.E.", p. 286; "Williams-Mittermeier", p. 287).