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Two new anaxyelid sawflies (Insecta, Hymenoptera, Siricoidea) from the Yixian Formation of western Liaoning, ChinaZhang · Cretaceous Research2006PDF325 KB
New early Eocene Siricomorpha (Hymenoptera: Symphyta: Pamphiliidae, Siricidae, Cephidae) from the Okanagan Highlands, western North AmericaArchibald et al. · Entomological Society of Canada2016PDF2.6 MB
Environmental Stewardship in the Judeo-christian Traditionrobert sirico &jay w. richard2007PDF6.8 MBEN