APA (7th ed.) Citation

Bloomberg News (Firm) & Keene, T. (2013). Twitter takes on Facebook in ad game. Bloomberg.

Chicago Style (17th ed.) Citation

Bloomberg News (Firm) and Tom Keene. Twitter Takes on Facebook in Ad Game. New York: Bloomberg, 2013.

MLA (9th ed.) Citation

Bloomberg News (Firm) and Tom Keene. Twitter Takes on Facebook in Ad Game. Bloomberg, 2013.