Howard, R., & Orrell, R. (2002). Management of motor neurone disease. BMJ Group.
Chicago Style aipamenaHoward, R., and R. Orrell. Management of Motor Neurone Disease. BMJ Group, 2002.
MLA aipamenaHoward, R., and R. Orrell. Management of Motor Neurone Disease. BMJ Group, 2002.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.