Wypych, G. (2013). Handbook of material weathering (Fifth edition.). Toronto: ChemTec Pub..
Dyfyniad Arddull ChicagoWypych, George. Handbook of Material Weathering. Fifth edition. Toronto: ChemTec Pub., 2013.
Dyfyniad MLAWypych, George. Handbook of Material Weathering. Fifth edition. Toronto: ChemTec Pub., 2013.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.