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Title from first page.
Also published in English edition as: Advertising and trading.
Publisher's number: ODA 2012/076.
OBNB doesn't sell books, but you may be able to find a copy at one of these websites:
Hysbysebu a masnachu. Published by Awdurdod Gweithredu'r Gemau Olympaidd. Publication and catalogue information, links to buy online and reader comments.