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- Cogger, H. G. 2014. Reptiles and Amphibians of Australia, 7th ed. CSIRO Publishing, xxx + 1033 pp.
- Cogger, H.G. 2000. Reptiles and Amphibians of Australia, 6th ed. Ralph Curtis Publishing, Sanibel Island, 808 pp.
- Davis, R.A.; Wilcox, J. 2008. Range extension of the Western Heath Dragon Rankinia adelaidensis and Gray's legless lizard Delma grayii with notes on the distribution of southern Swan coastal plain reptiles. Western Australian Naturalist 26 (1): 67-70
- Gray, J.E. 1867. The Lizards of Australia and New Zealand in the Collection of the British Museum. London: British Museum
- Kluge, A. G. 1974. A taxonomic revision of the lizard family Pygopodidae. Miscellaneous Publications, Museum of Zoology, University of Michigan, (147): 1-221. - get paper here
- Kluge, Arnold G. 1976. Phylogenetic relationships in the lizard family Pygopodidae: an evaluation of theory, methods and data. Miscellaneous Publications, Museum of Zoology, University of Michigan (152): 1-72 - get paper here
- Maryan, Bradford 1985. Delma grayii Smith in an urban area near Perth, Western Australia. Herpetofauna (Sydney) 16 (1-2): 29
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- Smith, A. 1838. Illustrations of the Zoology of South Africa, consisting chiefly of Figures and Descriptions of the Objects of Natural History collected during an Expedition into the Interior of South Africa, in the years 1834, 1835, and 1836 . . . Vol. 3, Reptilia. Smith, Elder, and Co., London [This series was published in 28 parts; see Waterhouse 1880, Proc. Zool. Soc. London, 1880:489-491, and Jentink 1893, Notes Leyden Mus. 15:182, for publication dates and contents.] - get paper here
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