Wyzga, R. E. (1974). Environmental damage costs: Record of a seminar held at the OECD in August 1972. Paris: Organisation for Economic Co-operation and Development.
Dyfyniad Arddull ChicagoWyzga, R. E. Environmental Damage Costs: Record of a Seminar Held At the OECD in August 1972. Paris: Organisation for Economic Co-operation and Development, 1974.
Dyfyniad MLAWyzga, R. E. Environmental Damage Costs: Record of a Seminar Held At the OECD in August 1972. Paris: Organisation for Economic Co-operation and Development, 1974.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.