Yn cynnwys mynegai = Includes index.
OBNB doesn't sell books, but you may be able to find a copy at one of these websites:
Mathemateg : ystadegaeth : safon UG/UWCH. Uned S1 by I. Gwyn Evans. ISBN 1860855059. Published by Uned Iaith Genedlaethol Cymru in 2001. Publication and catalogue information, links to buy online and reader comments.
