Vol. s5-23, Issue 135, 1932January 01, 1932 EDT
Kansas Permian Insects; Part 15, the Order Plectoptera
Kansas Permian Insects; Part 15, the Order Plectoptera
R. J. Tillyard,
Tillyard, R. J. (1932). Kansas Permian insects; Part 15, The order Plectoptera. American Journal of Science, s5-23(135), 237–272. https://doi.org/10.2475/ajs.s5-23.135.237