Chinese laborers excluded from U.S.. (2013). The History Channel website. Retrieved 2:51, May 23, 2013, from http://www.history.com/this-day-in-history/chinese-laborers-excluded-from-us.
Chinese laborers excluded from U.S.. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/chinese-laborers-excluded-from-us [Accessed 23 May 2013].
“Chinese laborers excluded from U.S..” 2013. The History Channel website. May 23 2013, 2:51 http://www.history.com/this-day-in-history/chinese-laborers-excluded-from-us.
“Chinese laborers excluded from U.S.,” The History Channel website, 2013, http://www.history.com/this-day-in-history/chinese-laborers-excluded-from-us [accessed May 23, 2013].
“Chinese laborers excluded from U.S.,” The History Channel website, http://www.history.com/this-day-in-history/chinese-laborers-excluded-from-us (accessed May 23, 2013).
Chinese laborers excluded from U.S. [Internet]. The History Channel website; 2013 [cited 2013 May 23] Available from: http://www.history.com/this-day-in-history/chinese-laborers-excluded-from-us.
Chinese laborers excluded from U.S., http://www.history.com/this-day-in-history/chinese-laborers-excluded-from-us (last visited May 23, 2013).
Chinese laborers excluded from U.S.. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/chinese-laborers-excluded-from-us. Accessed May 23, 2013.