Lorrie Faith Cranor. <a href="http://www.w3.org/TR/1998/NOTE-P3P10-principles-19980721"><cite>P3P Guiding Principles.</cite></a> 21 July 1998. W3C Note. URL: <a href="http://www.w3.org/TR/1998/NOTE-P3P10-principles-19980721">http://www.w3.org/TR/1998/NOTE-P3P10-principles-19980721</a>