Citations: Anonym 1956: [Needham, J. G.] Bulletin of the Entomological Society of America, Washington, D. C. 2, S. 8, B15: 10270a
Cattel, J. Mc Kenn 1927: American men of science, 5. New York, 713 S.
Mallis, A. 1971: American Entomologists. Rutgers Univ. Press New Brunswick, B15 A1642, pp. 174-178, Portr.
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. 234, Portr. (Taf. 37)
Osborn, H. 1946: Fragments of Entomological History Including Some Personal Recollections of Men and Events. 2 Columbus, Ohio, Published by the Author, 1-232 S., B15: 6024, pp. nur Portr.(Taf. 31)
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. 214, Portr.(Taf. 42)
R. G. S. 1956: [Needham, J. G.] Entomological News , Philadelphia 67, S. 164, B15 10004
Schwardt, H. H. 1959: [Needham, J. G.] Annals of the Entomological Society of America, Columbus/Ohio 52, B15 10270, pp. 338-339
Seehausen, M.; Turiault, M.; Fliedner, H.; Deliry, C. 2023: "A nice old greybeard" - Friedrich Ris' correspondence archived at the Senckenberg Museum Franfurt/Main, Germany. Report/ International Dragonfly Fund. A Journal of the International Dragonfly Fund., Frankfurt 2023 (180), S. 1-84, 12 326, pp. 38