| Subject: | P, Prefaces |
| Format: | Series: Harvard Classics, Volume 39, Text |
| Date issued: | 2004 |
| Language: | English |
| Publisher: | Project Gutenberg, |
| Rights: | Public domain in the USA. |
| Download link: | Prefaces and Prologues to Famous Books : with Introductions, Notes and Illustrations [electronic resource] |