<ref name="Tulloch_et_al_1963">{{cite journal |first1=G. S. |last1=Tulloch |first2=J. E. |last2=Shapiro |first3=B. |last3=Hershenov |year=1963 |title=The ultrastructure of the metasternal glands of ants |url= |journal=Bulletin of the Brooklyn Entomological Society |publisher= |volume=57 |issue= |pages=91–101 |doi= }}</ref>