C.S. · C. Semple · E C. · Ellen.S
Cornell University Library · Nabu Press
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| American History and Its Geographic Conditions | 978-1-145-53399-8 (1-145-53399-X) | 2010 |
| Influences of Geographic Environment, on the Basis of Ratzel's System of Anthropo-Geography | 978-1-112-02631-7 (1-112-02631-2) | 2009 |