Teitl clawr = Cover title.
Diogelwch yn gyntaf : deunyddiau asesu dewisol ar gyfer dylunio a thechnoleg, lefelau 1 a 2 cyfnod allweddol 3 by Qualifications, Curriculum & Assessment Authority for Wales. ISBN 1861122950. Published by Awdurdod Cymwysterau, Cwricwlwm ac Asesu Cymru in 2001. Publication and catalogue information, links to buy online and reader comments.