Books, Brochures, and Chapters>Book:  Agassiz , Louis and Agassiz , Elizabeth Cabot Cary (2011-03-27), Geological Sketches. [The preface signed: E. C. A., i.e. Elizabeth C. Agassiz. With a portrait.], British Library, Historical Print Editions, Retrieved on 2011-08-30

Books, Brochures, and Chapters>Book:  Agassiz , Louis (2009-02-10), Methods of Study in Natural History, BiblioBazaar, Retrieved on 2011-08-30

Books, Brochures, and Chapters>Book:  Agassiz , Louis (2010-06-14), Contributions to the natural history of the United States of America, Nabu Press, Retrieved on 2011-08-30