Argraffiad Saesneg gwreiddiol = Original English edition : London : Walker Books, 2003.
Addasiad Cymraeg gan = Welsh adaptation by : Elin Meek.
Fi yw'r bòs nawr! by Bruce Ingman. ISBN 1855966646. Published by Gwasg y Dref Wen in 2005. Publication and catalogue information, links to buy online and reader comments.