Internal Crowdsourcing in Companies
  MLA
  Ulbrich, Hans-Liudger Dienel, and Marco Wedel. Internal Crowdsourcing In Companies. Springer International Publishing, 2021.
  APA
  Ulbrich, U., Dienel, H., & Wedel, M. (2021). Internal Crowdsourcing in Companies. Springer International Publishing.
  Chicago
  Ulbrich, Hans-Liudger Dienel, and Marco Wedel. Internal Crowdsourcing In Companies. : Springer International Publishing, 2021.