Dogfen wybodaeth rhif : 065/2008 = Information document no. : 065/2008.
Addysg ar gyfer datblygu cynaliadwy a dinasyddiaeth fyd-eang : cyd-ddealltwriaeth ar gyfer ysgolion = Education for sustainable development and global citizenship : a common understanding for schools. ISBN 9780750447706. Published by Department for Children, Education, Lifelong Learning and Skills in 2008. Publication and catalogue information, links to buy online and reader comments.