Books, Brochures, and Chapters>Book:  Blackstone , Sir William (1773), Commentaries on the laws of England ..., Retrieved on 2012-01-16

Source Material [books.google.com]

Books, Brochures, and Chapters>Book:  Donovan , James M. and III Anderson , H. Edwin, (2003-07), Anthropology & Law, Berghahn Books, Retrieved on 2011-09-15

Source Material [books.google.com]

Books, Brochures, and Chapters>Book:  Newton , Isaac (2010-02-01), The Principia: Mathematical Principles of Natural Philosophy, www.snowballpublishing.com, Retrieved on 2011-06-05