Chokroverty, S., & Thomas, R. J. Atlas of sleep medicine (Second edition.).
Chicago Style aipamenaChokroverty, Sudhansu, and Robert J. Thomas. Atlas of Sleep Medicine. Second edition.
MLA aipamenaChokroverty, Sudhansu, and Robert J. Thomas. Atlas of Sleep Medicine. Second edition.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.