sickels taves lauren B. (1999). The use of and need for preservation standards in architec-: Tural conservation (2 ed.). ASTM.
Chicago Style (17th ed.) Zitazioasickels taves lauren B. The Use of and Need for Preservation Standards in Architec-: Tural Conservation. 2 ed. West Conshohocken: ASTM, 1999.
MLA (9th ed.) Zitazioasickels taves lauren B. The Use of and Need for Preservation Standards in Architec-: Tural Conservation. 2 ed. ASTM, 1999.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.