The Protoctist KingdomBook - 2006
It is easy to ignore the Kingdom Protoctista - most of its members are microscopic. Yet the kingdom is ancient and immense. Within its realm are hundreds of thousands of species, with an ancestry stretching back more than one and a half billion years. The
Publisher: New York : Marshall Cavendish Benchmark, 2006.
Characteristics: 95 pages :,color illustrations ;,24 cm.