Express yourself!
  MLA
  Kimminich, Eva, et al. Express Yourself!. Bielefeld: transcript Verlag, 2015.
  APA
  Kimminich, E., Geuen, H., Pfänder, S., & Rappe, M. (2015). Express yourself!. Bielefeld: transcript Verlag.
  Chicago
  Kimminich, Eva, Heinz Geuen, Stefan Pfänder, and Michael Rappe. Express Yourself!. Bielefeld: transcript Verlag, 2015.