Urry, D. Flying birds.
Chicago Style (17th ed.) ZitazioaUrry, David. Flying Birds.
MLA (9th ed.) ZitazioaUrry, David. Flying Birds.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
APA (7th ed.) Zitazioa
Urry, D. Flying birds.
Chicago Style (17th ed.) ZitazioaUrry, David. Flying Birds.
MLA (9th ed.) ZitazioaUrry, David. Flying Birds.