Dragon flies vs. mosquitoes : can the mosquito pest be mitigated? studies in the life history of irritating insects, their natural enemies, and artificial checks / by working entomologists ; with an introduction by Robert H. Lamborn.

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Dragon flies vs. mosquitoes : can the mosquito pest be mitigated? studies in the life history of irritating insects, their natural enemies, and artificial checks / by working entomologists ; with an introduction by Robert H. Lamborn. Public Domain Mark. Source: Wellcome Collection.