Citations: Anonym 1988: [Will, H. C.] Bulletin of the Entomological Society of America, College Park, Md. 32 (2), B15 10270a, pp. 126
Anonym 1988: [Will, H. C.] Symphytos, Ottawa/Washington 4, B15 B2245:4, pp. 14, + Schr.verz. (Symphyta)
Osborn, H. 1937: Fragments of Entomological History Including Some Personal Recollections of Men and Events. 1 Columbus, Ohio, Published by the Author, 1-394 S., B15: 6024, pp. 285
Will, E. F. 1986: [Will, H. C.] Bulletin of the Entomological Society of America, College Park, Md. 32 (2), B15 10270a, pp. 126