Bulldoc is released under MIT. This book — under Creative Commons Attribution. You must attribute the work in the manner specified by the author or licensor (but not in any way that suggests that they endorse you or your use of the work).
Syntax highlighting library GeSHi is used inside, which is released under GPL license, therefore you should remove this module if you are going to release code based on bulldoc under non-free license.
© H-type, 2008
www.bulldoc.ru