Template:Freshwater Algae of North America - Wikipedia
Wehr, John D.; Sheath, Robert G., eds. (2002). Freshwater Algae of North America: Ecology and Classification. Aquatic Ecology (1st ed.). Academic Press. ISBN 978-0127415505.
Wehr, John D.; Sheath, Robert G., eds. (2002). Freshwater Algae of North America: Ecology and Classification. Aquatic Ecology (1st ed.). Academic Press. ISBN 978-0127415505.