Vol. s5-11, Issue 64, 1926April 01, 1926 EDT
Kansas Permian Insects; Part 8, the Order Copeognatha
Kansas Permian Insects; Part 8, the Order Copeognatha
Robin John Tillyard,
Tillyard, R. J. (1926). Kansas Permian insects; Part 8, the order Copeognatha. American Journal of Science, s5-11(64), 315–349. https://doi.org/10.2475/ajs.s5-11.64.315