Azar, D., & Nel, A. (2011). The oldest psyllipsocid booklice, in Lower Cretaceous amber from Lebanon (Psocodea, Trogiomorpha, Psocathropetae, Psyllipsocidae). Pensoft Publishers.
Chicago-referens (17:e uppl.)Azar, Dany, och André Nel. The Oldest Psyllipsocid Booklice, in Lower Cretaceous Amber from Lebanon (Psocodea, Trogiomorpha, Psocathropetae, Psyllipsocidae). Pensoft Publishers, 2011.
MLA-referens (9:e uppl.)Azar, Dany, och André Nel. The Oldest Psyllipsocid Booklice, in Lower Cretaceous Amber from Lebanon (Psocodea, Trogiomorpha, Psocathropetae, Psyllipsocidae). Pensoft Publishers, 2011.
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