Arg. Saesneg gwreiddiol = Original English ed.: Llundain: Walker Books, 1998.
Addasiad Cymraeg gan = Welsh adaptation by: Dylan Williams.
Dyma faint dwi'n dy garu di : llyfr sbonc by Sam McBratney. ISBN 1902416120. Published by Cymdeithas Lyfrau Ceredigion in 1999. Publication and catalogue information, links to buy online and reader comments.