De Angelis d'Ossat, G. (1982). Guide to the methodical study of monuments and causes of their deterioration =: Guida allo studio metodico dei monumenti e delle loro cause di deterioramento (Partially revion.). Rome: International Centre for the Study of Preservation and Restoration of Cultural Property.
استشهاد بنمط شيكاغوDe Angelis d'Ossat, Guglielmo. Guide to the Methodical Study of Monuments and Causes of Their Deterioration =: Guida Allo Studio Metodico Dei Monumenti E Delle Loro Cause Di Deterioramento. Partially revion. Rome: International Centre for the Study of Preservation and Restoration of Cultural Property, 1982.
MLA استشهادDe Angelis d'Ossat, Guglielmo. Guide to the Methodical Study of Monuments and Causes of Their Deterioration =: Guida Allo Studio Metodico Dei Monumenti E Delle Loro Cause Di Deterioramento. Partially revion. Rome: International Centre for the Study of Preservation and Restoration of Cultural Property, 1982.