How to Know the Freshwater Algae
Explains basic laboratory procedure and identifies common species and genera of freshwater algae according to families and phyla.
Diatoms of North America
How to Know the Protozoa (The Pictured Key Nature Series)
Freshwater Algae: Identification, Enumeration and Use as Bioindicators
Free-Living Freshwater Protozoa: A Color Guide
How to Know the Mosses and Liverworts