Congress bans sending obscene materials through the mail. (2013). The History Channel website. Retrieved 8:35, June 20, 2013, from http://www.history.com/this-day-in-history/congress-bans-sending-obscene-materials-through-the-mail.
Congress bans sending obscene materials through the mail. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/congress-bans-sending-obscene-materials-through-the-mail [Accessed 20 Jun 2013].
“Congress bans sending obscene materials through the mail.” 2013. The History Channel website. Jun 20 2013, 8:35 http://www.history.com/this-day-in-history/congress-bans-sending-obscene-materials-through-the-mail.
“Congress bans sending obscene materials through the mail,” The History Channel website, 2013, http://www.history.com/this-day-in-history/congress-bans-sending-obscene-materials-through-the-mail [accessed Jun 20, 2013].
“Congress bans sending obscene materials through the mail,” The History Channel website, http://www.history.com/this-day-in-history/congress-bans-sending-obscene-materials-through-the-mail (accessed Jun 20, 2013).
Congress bans sending obscene materials through the mail [Internet]. The History Channel website; 2013 [cited 2013 Jun 20] Available from: http://www.history.com/this-day-in-history/congress-bans-sending-obscene-materials-through-the-mail.
Congress bans sending obscene materials through the mail, http://www.history.com/this-day-in-history/congress-bans-sending-obscene-materials-through-the-mail (last visited Jun 20, 2013).
Congress bans sending obscene materials through the mail. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/congress-bans-sending-obscene-materials-through-the-mail. Accessed Jun 20, 2013.