Citations: Howard, L. O. 1930: History of applied Entomology (Somewhat Anecdotal). Smithsonian Miscellaneous Collections, Washington 84, S. X+1-564, B15: 1018, pp. (Taf. 45)
Howard 1915: Some Pioneers in Mosquito sanitation and other Mosquito work. The Popular science monthly, New York 87 (Jul. / Aug.)
Howard 1923: A Fifty-Year Sketch History of Medical Entomology. Washington, B15 3470, pp. 565-586