Citations: Anonym 1920: [Billups, T. R.] L'Entomologiste. Revue d'Amateurs, Paris 53, B15 11185, pp. 72
Gilbert, P. 2007: A Source Book for Biographical Literature on Entomologists Leiden, Backhuys Publishers, 694 S., A 2972, pp. 53
R. A. 1920: [Billups, T. R.] The Entomologist's Monthly Magazine, Third Series, London 56, B15 10006, pp. 66