Colophon Colophon
Edition Version 3.50, 2015/12/30 (Printing: January 14, 2021)
©2004–2015 Robert A. Beezer
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the appendix entitled “GNU Free Documentation License.”