William A. Geering. (2002). Preparation of contagious bovine pleuropneumonia contingency plans. Rome, Italy: FAO.
Chicago Style aipamenaWilliam A. Geering. Preparation of Contagious Bovine Pleuropneumonia Contingency Plans. Rome, Italy: FAO, 2002.
MLA aipamenaWilliam A. Geering. Preparation of Contagious Bovine Pleuropneumonia Contingency Plans. Rome, Italy: FAO, 2002.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.