Bertolt Brecht and Kurt Weill's The Threepenny Opera premieres in Berlin. (2013). The History Channel website. Retrieved 1:30, May 19, 2013, from http://www.history.com/this-day-in-history/bertolt-brecht-and-kurt-weills-the-threepenny-opera-premieres-in-berlin.
Bertolt Brecht and Kurt Weill's The Threepenny Opera premieres in Berlin. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/bertolt-brecht-and-kurt-weills-the-threepenny-opera-premieres-in-berlin [Accessed 19 May 2013].
“Bertolt Brecht and Kurt Weill's The Threepenny Opera premieres in Berlin.” 2013. The History Channel website. May 19 2013, 1:30 http://www.history.com/this-day-in-history/bertolt-brecht-and-kurt-weills-the-threepenny-opera-premieres-in-berlin.
“Bertolt Brecht and Kurt Weill's The Threepenny Opera premieres in Berlin,” The History Channel website, 2013, http://www.history.com/this-day-in-history/bertolt-brecht-and-kurt-weills-the-threepenny-opera-premieres-in-berlin [accessed May 19, 2013].
“Bertolt Brecht and Kurt Weill's The Threepenny Opera premieres in Berlin,” The History Channel website, http://www.history.com/this-day-in-history/bertolt-brecht-and-kurt-weills-the-threepenny-opera-premieres-in-berlin (accessed May 19, 2013).
Bertolt Brecht and Kurt Weill's The Threepenny Opera premieres in Berlin [Internet]. The History Channel website; 2013 [cited 2013 May 19] Available from: http://www.history.com/this-day-in-history/bertolt-brecht-and-kurt-weills-the-threepenny-opera-premieres-in-berlin.
Bertolt Brecht and Kurt Weill's The Threepenny Opera premieres in Berlin, http://www.history.com/this-day-in-history/bertolt-brecht-and-kurt-weills-the-threepenny-opera-premieres-in-berlin (last visited May 19, 2013).
Bertolt Brecht and Kurt Weill's The Threepenny Opera premieres in Berlin. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/bertolt-brecht-and-kurt-weills-the-threepenny-opera-premieres-in-berlin. Accessed May 19, 2013.