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keyword: pest arthropods – 6 free books.
These books are not included in Project Gutenberg.
Review of Invertebrate Biological Control Agents Introduced into Europe
Urs Schaffner and Esther Gerber
Proceedings of the 5th International Symposium on Biological Control of Arthropods
Charles Vincent et al.
Field Guide for the Identification of Damage on Woody Sentinel Plants
Alain Roques et al.
Review of Invertebrate Biological Control Agents Introduced Into Europe
Esther Gerber and Urs Schaffner
Proceedings of the 5th International Symposium on Biological Control of Arthropods
Charles Vincent et al.
Field Guide for the Identification of Damage on Woody Sentinel Plants
René Eschen et al.
