Gordon, I. R., & David, T. J. (1981). The bristol registry of bone dysplasias: The first 10 years.
Chicago Style aipamenaGordon, I R., and T J. David. The Bristol Registry of Bone Dysplasias: The First 10 Years. 1981.
MLA aipamenaGordon, I R., and T J. David. The Bristol Registry of Bone Dysplasias: The First 10 Years. 1981.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.