Loma Prieta earthquake strikes near San Francisco. (2013). The History Channel website. Retrieved 3:49, May 25, 2013, from http://www.history.com/this-day-in-history/loma-prieta-earthquake-strikes-near-san-francisco.
Loma Prieta earthquake strikes near San Francisco. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/loma-prieta-earthquake-strikes-near-san-francisco [Accessed 25 May 2013].
“Loma Prieta earthquake strikes near San Francisco.” 2013. The History Channel website. May 25 2013, 3:49 http://www.history.com/this-day-in-history/loma-prieta-earthquake-strikes-near-san-francisco.
“Loma Prieta earthquake strikes near San Francisco,” The History Channel website, 2013, http://www.history.com/this-day-in-history/loma-prieta-earthquake-strikes-near-san-francisco [accessed May 25, 2013].
“Loma Prieta earthquake strikes near San Francisco,” The History Channel website, http://www.history.com/this-day-in-history/loma-prieta-earthquake-strikes-near-san-francisco (accessed May 25, 2013).
Loma Prieta earthquake strikes near San Francisco [Internet]. The History Channel website; 2013 [cited 2013 May 25] Available from: http://www.history.com/this-day-in-history/loma-prieta-earthquake-strikes-near-san-francisco.
Loma Prieta earthquake strikes near San Francisco, http://www.history.com/this-day-in-history/loma-prieta-earthquake-strikes-near-san-francisco (last visited May 25, 2013).
Loma Prieta earthquake strikes near San Francisco. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/loma-prieta-earthquake-strikes-near-san-francisco. Accessed May 25, 2013.