The Boston police department goes on strike. (2013). The History Channel website. Retrieved 11:35, May 19, 2013, from http://www.history.com/this-day-in-history/the-boston-police-department-goes-on-strike.
The Boston police department goes on strike. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/the-boston-police-department-goes-on-strike [Accessed 19 May 2013].
“The Boston police department goes on strike.” 2013. The History Channel website. May 19 2013, 11:35 http://www.history.com/this-day-in-history/the-boston-police-department-goes-on-strike.
“The Boston police department goes on strike,” The History Channel website, 2013, http://www.history.com/this-day-in-history/the-boston-police-department-goes-on-strike [accessed May 19, 2013].
“The Boston police department goes on strike,” The History Channel website, http://www.history.com/this-day-in-history/the-boston-police-department-goes-on-strike (accessed May 19, 2013).
The Boston police department goes on strike [Internet]. The History Channel website; 2013 [cited 2013 May 19] Available from: http://www.history.com/this-day-in-history/the-boston-police-department-goes-on-strike.
The Boston police department goes on strike, http://www.history.com/this-day-in-history/the-boston-police-department-goes-on-strike (last visited May 19, 2013).
The Boston police department goes on strike. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/the-boston-police-department-goes-on-strike. Accessed May 19, 2013.