The Humboldt current
Subtitle: 19th century exploration and the sources of American environmentalism
By: Aaron Sachs.
Publisher: Viking
Published: 2006
Place of publication: New York
Language: eng
Subjects: Humboldt, Alexander von, 1769-1859; Scientists -- Germany -- Biography; Scientific expeditions -- History -- 19th century; Environmentalism -- History
Notes: Includes bibliographical references and index.