International Labour Office & ebrary, Inc. (2011). Guidelines for the use of the ILO international classification of radiographs of pneumoconioses (Rev. ed.). International Labour Office.
Chicago Style (17th ed.) ZitazioaInternational Labour Office eta Inc ebrary. Guidelines for the Use of the ILO International Classification of Radiographs of Pneumoconioses. Rev. ed. Geneva: International Labour Office, 2011.
MLA (9th ed.) ZitazioaInternational Labour Office eta Inc ebrary. Guidelines for the Use of the ILO International Classification of Radiographs of Pneumoconioses. Rev. ed. International Labour Office, 2011.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.