Gastrointestinal Bleeding
  MLA
  Pryor, Aurora D.; Pappas, Theodore N.; Branch, M. Stanley, M. Stanley Branch, and Theodore N Pappas. Gastrointestinal Bleeding. Springer International Publishing, 2016.
  APA
  Pryor, M. Stanley, Branch, M. Stanley, & Pappas, T. N. (2016). Gastrointestinal Bleeding. Springer International Publishing.
  Chicago
  Pryor, Aurora D.; Pappas, Theodore N.; Branch, M. Stanley, M. Stanley Branch, and Theodore N Pappas. Gastrointestinal Bleeding. : Springer International Publishing, 2016.