Llyfryddiaeth = Bibliography: p[121-122]. - Yn cynnwys mynegeion = Includes indexes.
Ar waelod y clawr = At foot of cover: Bwrdd yr Iaith Gymraeg, Welsh Language Board.
Canllawiau ysgrifennu Cymraeg : [ar gyfer gwaith a swyddfa, ysgol, coleg a chartref] by J. Elwyn Hughes. ISBN 1859025986. Published by Gomer in 1998. Publication and catalogue information, links to buy online and reader comments.