by Ralph O. Brinkhurst
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The benthos of lakes
Aquatic oligochaete biology
Aquatic oligochaeta of the world, supple...
A guide for the identification of Britis...
This good, good earth
Aquatic oligochaeta of the world
Animal life in fresh water
Fresh-water rhizopods of North America
Notes on the Unionidae found in the vici...
Pond Animals (Town & Country)
Pond and stream life of Europe in colour
Water animal identification keys