Citations: 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. 296
Hodson, A. C. 1982: [Mickel, C. E.] Bulletin of the Entomological Society of America, College Park, Md. 28 (4), B15: 10270a, pp. 379, Portr.
Manley, D. G. 1983: [Mickel, C. E.] Sphecos. A Newsletter (= Forum) for Aculeate Wasp Researchers., Washington 7, S. 23, B15 11907
Osborn, H. ((Hrsg.)) 1937: Fragments of Entomological History Including Some Personal Recollections of Men and Events. 1 Columbus, Ohio, Published by the Author, 1-394 S., 6024, pp. 271, Portr. (Taf. 26)
Osborn, H. 1952: A Brief History of Entomology Including Time of Demosthenes and Aristotle to Modern Times with over Five Hundred Portraits. Columbus, Ohio, The Spahr & Glenn Company, 1-303 S., 6024a, pp. 213, Portr.(Taf. 27)