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Mae'r pecyn yn cynnwys 1 llyfr, 34 o gardiau adnodd ac 1 cryno ddisg = Pack contains 1 book, 34 resource cards and 1 cd-rom.
OBNB doesn't sell books, but you may be able to find a copy at one of these websites:
Edrych ymlaen, edrych yn ôl : Cymru yn y 1960au a 1970au: adnoddau hanes by Keith Strange. ISBN 1902724925. Published by Gwasg APCC in 2004. Publication and catalogue information, links to buy online and reader comments.