Yn cynnwys mynegai = Includes index.
Cyhoeddwyd yn wreiddiol yn Saesneg gan = Published originally in English by: Hodder Education.
Credu a phrofi : ar gyfer manyleb B CBAC, uned 2 by Gavin Craigen. ISBN 9781848513105. Published by Gwasg Gomer in 2010. Publication and catalogue information, links to buy online and reader comments.