Adfer tir halogedig : canllawiau Cynulliad Cenedlaethol Cymru i awdurdodau gorfodi o dan Ran IIA o Ddeddf Diogelu'r Amgylchedd 1990 = Remediation of contaminated land : National Assembly for Wales guidance to enforcing authorities under Part IIa of the Environmental Protection Act 1990.
Wales.National Assembly.
Caerdydd : Cynulliad Cenedlaethol Cymru,
2000.
Teitl clawr = Cover title.
Great Britain.
Land degradation
Soil remediation
Environmental protection