Littlewood, J. M. (1995). Abdominal pain in cystic fibrosis.
Chicago Style aipamenaLittlewood, J M. Abdominal Pain in Cystic Fibrosis. 1995.
MLA aipamenaLittlewood, J M. Abdominal Pain in Cystic Fibrosis. 1995.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.