Requirements Engineering: Foundation for Software Quality
  MLA
  Grünbacher, and Anna Perini. Requirements Engineering: Foundation for Software Quality. Springer International Publishing, 2017.
  APA
  Grünbacher, G., & Perini, A. (2017). Requirements Engineering: Foundation for Software Quality. Springer International Publishing.
  Chicago
  Grünbacher, and Anna Perini. Requirements Engineering: Foundation for Software Quality. : Springer International Publishing, 2017.