Roger W. Haworth, the copyright holder of this work, hereby publishes it under the following licenses:
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 section entitled GNU Free Documentation License.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue
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:* to remix – to adapt the work
:Under the following conditions:
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https://creativecommons.org/licenses/by-sa/4.0
CC BY-SA 4.0
Creative Commons Attribution-Share Alike 4.0
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