?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=Cornelius&rft.aulast=Puschmann&rft.au=Puschmann%2C+Cornelius&rft.title=Epilogue%3A+Why+study+Twitter%3F&rft.isbn=978-1-4331-2170-8&rft.date=2014&rft.genre=bookitem