Rheoli gwastraff yn gynaladwy : papur ymghyngorol [sic] : dysgu byw'n wahanol : Gorffennaf 2001 = Managing waste sustainably : consultation paper : towards a sustainable Wales : July 2001. ISBN 0750426624. Published by Cynulliad Cenedlaethol Cymru in 2001. Publication and catalogue information, links to buy online and reader comments.