Michael G. Fitton
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Ichneumonid Wasps (Hymenoptera: Ichneumonidae): their Classification and Biology
kr 989 Legg i handlekurvRES Handbooks for the Identification of British Insects Volume 7 Part 12
Ichneumonid Wasps (Hymenoptera: Ichneumonidae): their Classification and Biology en en håndbok for å identifisere britiske insekter.