Cyhoeddwyd yn wreiddiol = Originally published: London : Health Education Authority, 1993.
Yn cynnwys mynegai = Includes index.
Rheolwyd y project a chyfieithwyd y testun gan = Project was managed and text translated by: Gwasanaeth Cyfieithu Prysg.
Testun ar du mewn y clawr cefn = Text on inside back cover.
Naw mis a mwy : gwybodaeth am feichiogi, geni a'r wythnosau cyntaf by Nancy Kohner. ISBN 1856871940. Published by Hybu Iechyd Cymru in 1997. Publication and catalogue information, links to buy online and reader comments.