Argraffiad Saesneg gwreiddiol = Original English edition : London : Little Tiger, 2006.
Teitl y clawr = Title from cover.
Y testun Cymraeg = Welsh text: Sioned Lleinau.
Llyfr bordyn = Board book.
Un noson oer by M. Christina Butler. ISBN 9781843238089. Published by Gwasg Gomer in 2007. Publication and catalogue information, links to buy online and reader comments.