{{sfn | Schneider | Evans | Pinard | 2009 | p=}}

* {{cite book | last=Schneider | first=Gary | last2=Evans | first2=Jessica | last3=Pinard | first3=Katherine T. | title=The Internet - Illustrated | publisher=Cengage Learning | date=2009-10-26 | isbn=978-0-538-75098-1}}

<ref name="r383">{{cite book | last=Schneider | first=Gary | last2=Evans | first2=Jessica | last3=Pinard | first3=Katherine T. | title=The Internet - Illustrated | publisher=Cengage Learning | date=2009-10-26 | isbn=978-0-538-75098-1 | page=}}</ref>