Arg. Saesneg gwreiddiol = Original English ed.: London: Scholastic Children's Books,1997.
Addasiad Cymraeg gan = Welsh adaptation by: Luned Whelan.
Teitl clawr = Cover title.
Pwy sydd ar lan y mor? by Sue Cony. ISBN 0852842201. Published by Hughes a'i Fab. Publication and catalogue information, links to buy online and reader comments.