- Libro electrónicoLouis AgassizElizabeth Cabot Cary Agassiz
- Libro electrónicoEssay on ClassificationLouis Agassiz
- Libro electrónicoLouis AgassizLouis Agassiz
- Libro electrónicoLouis AgassizLouis Agassiz
- Libro electrónicoThe Structure of Animal Life - Six Lectures Delivered at the Brooklyn Academy of Music in January and February, 1862Louis Agassiz