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The mayflies of North and Central America за авторством Edmunds, George F.

Предмети: “...Mayflies North America....”
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Eintags- und Steinfliegen (Insecta: Ephemeroptera, Plecoptera) in Mittelgebirgsbachen des Harzes : Analyse und Prognose naturnaher Referenzzonosen fur die Gewasserbewertung / за авторством Bohme, Dirk

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The mayflies of Europe (Ephemeroptera) / за авторством Bauernfeind, Ernst, Soldán, Tomáš

Предмети: “...Mayflies Europe Identification....”
An electronic book accessible through the World Wide Web; click to view