Chan, W.-H. and Kaufman, P. E. (2009) “American Dog Tick, Dermacentor variabilis (Say) (Arachnida: Ixodida: Ixodidae): EENY-443/IN781, 11/2008”, EDIS. Gainesville, FL, 2009(1). doi: 10.32473/edis-in781-2008.