APA (7th ed.) Zitazioa
Petersen, C., & Ure, B. (2017). Thoracic surgery in children and adolescents. De Gruyter.
Chicago Style (17th ed.) Zitazioa
Petersen, Claus, eta B. Ure. Thoracic Surgery in Children and Adolescents. Berlin, [Germany] ; Boston, [Massachusetts]: De Gruyter, 2017.
MLA (9th ed.) Zitazioa
Petersen, Claus, eta B. Ure. Thoracic Surgery in Children and Adolescents. De Gruyter, 2017.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.