Teitl clawr = Cover title.
Gwerthuso cynaliadwyedd cynlluniau datblygu unedol yng Nghymru : canllawiau ar arferion da = Sustainability appraisal of unitary development plans in Wales : a good practice guide. ISBN 0750429216. Published by Cynulliad Cenedlaethol Cymru in 2002. Publication and catalogue information, links to buy online and reader comments.