Llyfr bordyn = Board book.
Cyhoeddwyd yn wreiddiol = Originally published: Berkhampstead : Anno Domini, [20--?].
Teitl clawr = Cover title.
Cyhoeddwyd y fersiwn Saesneg yn wreiddiol = Original English ed. publshed: Berkhampstead : Anno Domini, 2012.
Nadolig pi-po by Bethan James. ISBN 9781859947333. Published by Cyhoeddiadau'r Gair in 2012. Publication and catalogue information, links to buy online and reader comments.