Gibson, G. A. P., Huber, J. T., & Woolley, J. B. (1997). Annotated keys to the genera of Nearctic Chalcidoidea (Hymenoptera). NRC Research Press.
Chicago Style (17th ed.) CitationGibson, Gary A. P., John T. Huber, and James Braden Woolley. Annotated Keys to the Genera of Nearctic Chalcidoidea (Hymenoptera). Ottawa: NRC Research Press, 1997.
MLA (9th ed.) CitationGibson, Gary A. P., et al. Annotated Keys to the Genera of Nearctic Chalcidoidea (Hymenoptera). NRC Research Press, 1997.
Warning: These citations may not always be 100% accurate.