This book is distributed under the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 license. You are free to copy, distribute, and transmit this work. You are free to add or adapt the work. You must attribute the work to the author(s) listed above. You may not use this work or derivative works for commercial purposes. If you alter, transform, or build upon this work you may distribute the resulting work only under the same or similar license.For additional details, please see: http://creativecommons.org/licenses/by-nc-sa/3.0/