Steinbeck's Sea of Cortez is published. (2013). The History Channel website. Retrieved 3:38, May 23, 2013, from http://www.history.com/this-day-in-history/steinbecks-sea-of-cortez-is-published.
Steinbeck's Sea of Cortez is published. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/steinbecks-sea-of-cortez-is-published [Accessed 23 May 2013].
“Steinbeck's Sea of Cortez is published.” 2013. The History Channel website. May 23 2013, 3:38 http://www.history.com/this-day-in-history/steinbecks-sea-of-cortez-is-published.
“Steinbeck's Sea of Cortez is published,” The History Channel website, 2013, http://www.history.com/this-day-in-history/steinbecks-sea-of-cortez-is-published [accessed May 23, 2013].
“Steinbeck's Sea of Cortez is published,” The History Channel website, http://www.history.com/this-day-in-history/steinbecks-sea-of-cortez-is-published (accessed May 23, 2013).
Steinbeck's Sea of Cortez is published [Internet]. The History Channel website; 2013 [cited 2013 May 23] Available from: http://www.history.com/this-day-in-history/steinbecks-sea-of-cortez-is-published.
Steinbeck's Sea of Cortez is published, http://www.history.com/this-day-in-history/steinbecks-sea-of-cortez-is-published (last visited May 23, 2013).
Steinbeck's Sea of Cortez is published. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/steinbecks-sea-of-cortez-is-published. Accessed May 23, 2013.