Herrera, A. (2011). Five new species of the genus Sphelodon (Hymenoptera: Ichneumonidae) from Brazil with a key to the Neotropical species. Universidad de Costa Rica.
Citazione stile Chigago Style (17a edizione)Herrera, Andrés. Five New Species of the Genus Sphelodon (Hymenoptera: Ichneumonidae) from Brazil with a Key to the Neotropical Species. Universidad de Costa Rica, 2011.
Citatione MLA (9a ed.)Herrera, Andrés. Five New Species of the Genus Sphelodon (Hymenoptera: Ichneumonidae) from Brazil with a Key to the Neotropical Species. Universidad de Costa Rica, 2011.
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