Dyfyniad APA

Parnell, A. C., & Ashford, D. H. (1980). Fire safety in historic buildings. Society for the Protection of Ancient Buildings.

Dyfyniad Arddull Chicago

Parnell, A. C., and David H. Ashford. Fire Safety in Historic Buildings. London: Society for the Protection of Ancient Buildings, 1980.

Dyfyniad MLA

Parnell, A. C., and David H. Ashford. Fire Safety in Historic Buildings. Society for the Protection of Ancient Buildings, 1980.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.