
Cyhoeddwyd yn wreiddiol = Originally published: Abertawe : Tŷ John Penry, 1987.
'Golygwyd yr argraffiad hwn gan Victor John' - nodyn o'r clawr cefn = note from back cover.
Teitl y cyhoeddiad gwreiddiol = Title of original publication: Ail lyfr o idiomau Cymraeg.
Idiomau Cymraeg by R. E. Jones. ISBN 1871799295. Published by Tŷ John Penri in 1997. Publication and catalogue information, links to buy online and reader comments.