| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| The Higher Usefulness of Science, and Other Essays | 978-1-141-07088-6 (1-141-07088-X) | 2010 |
| The Probable Infinity Of Nature And Life | 978-1-4179-5074-4 (1-4179-5074-9) | 2005 |
| War, Science and Civilization | 978-1-112-49382-9 (1-112-49382-4) | 2009 |
E -R · E. Ritter · Emerson R. · W R · W Ritter · William E. · William E. Ritter · William Emerson · William R. · William Ritter
Cornell University Library · Kessinger Publishing, LLC · Nabu Press