Nixon supports construction of the Alaskan oil pipeline. (2013). The History Channel website. Retrieved 6:42, May 21, 2013, from http://www.history.com/this-day-in-history/nixon-supports-construction-of-the-alaskan-oil-pipeline.
Nixon supports construction of the Alaskan oil pipeline. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/nixon-supports-construction-of-the-alaskan-oil-pipeline [Accessed 21 May 2013].
“Nixon supports construction of the Alaskan oil pipeline.” 2013. The History Channel website. May 21 2013, 6:42 http://www.history.com/this-day-in-history/nixon-supports-construction-of-the-alaskan-oil-pipeline.
“Nixon supports construction of the Alaskan oil pipeline,” The History Channel website, 2013, http://www.history.com/this-day-in-history/nixon-supports-construction-of-the-alaskan-oil-pipeline [accessed May 21, 2013].
“Nixon supports construction of the Alaskan oil pipeline,” The History Channel website, http://www.history.com/this-day-in-history/nixon-supports-construction-of-the-alaskan-oil-pipeline (accessed May 21, 2013).
Nixon supports construction of the Alaskan oil pipeline [Internet]. The History Channel website; 2013 [cited 2013 May 21] Available from: http://www.history.com/this-day-in-history/nixon-supports-construction-of-the-alaskan-oil-pipeline.
Nixon supports construction of the Alaskan oil pipeline, http://www.history.com/this-day-in-history/nixon-supports-construction-of-the-alaskan-oil-pipeline (last visited May 21, 2013).
Nixon supports construction of the Alaskan oil pipeline. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/nixon-supports-construction-of-the-alaskan-oil-pipeline. Accessed May 21, 2013.