Henry James Slack
Marvels of Pond-life Or, A Year's Microscopic Recreations Among the Polyps, Infusoria, Rotifers, Water-bears and Polyzoa
Henry James Slack · 2011
ספרייה ציבורית, Project Gutenberg. בלי הרשמה.
MicroscopyFreshwater animals -- EnglandPond animals