Citations: Bern, H. A. 1996: [Krombein, K. V.] Memoirs of the Entomological Society of Washington, Washington 17, B15 10215a, pp. 11-12
Bradley, J. C. 1959: The influence of the American Entomological Society upon the study of Hymenoptera. Transactions of the American Entomological Society, Philadelphia 85 (4), S. 277-301, B15 10217, pp. 298
Norden, B. B. 1996: [Krombein, K. V.] Memoirs of the Entomological Society of Washington, Washington 17, B15 10215a, pp. 8-10, Portr.
Shetler, S. G. 1996: [Krombein, K. V.] Memoirs of the Entomological Society of Washington, Washington 17, B15 10215a, pp. 13