The Project Gutenberg Collection of Works by Freethinkers With Linked On-line and Off-line Indexes to 157 Volumes by 90 Authors; Plus Indexes to 15 other Author's Multi-Volume Sets.
| Language | en |
|---|---|
| First published | 2012-11-23 |
| Rights | Public domain in the USA. |
| Gutenberg ID | #41450 |