APA (7th ed.) Citation

O'Brien, P. (2016). Counter-terrorism in Europe: The elusive search for order. European security.

Chicago Style (17th ed.) Citation

O'Brien, Peter. "Counter-terrorism in Europe: The Elusive Search for Order." European Security 2016.

MLA (8th ed.) Citation

O'Brien, Peter. "Counter-terrorism in Europe: The Elusive Search for Order." European Security, 2016.

Warning: These citations may not always be 100% accurate.