<ref name="O'Keefe_et_al_2000">{{cite journal |first1=S. T. |last1=O'Keefe |first2=J. L. |last2=Cook |first3=T. |last3=Dudek |first4=D. F. |last4=Wunneburger |first5=M. D. |last5=Guzman |first6=R. N. |last6=Coulson |first7=S. B. |last7=Vinson |year=2000 |title=The distribution of Texas ants |url= |journal=Southwestern Entomologist Supplement |publisher= |volume=22 |issue= |pages=1–92 |doi= }}</ref>