Deunydd ychwanegol mewn poced tu fewn i'r clawr cefn = Additional material in pocket inside back cover.
Teitl clawr = Cover title.
Defnyddio'r Gymraeg mewn busnes = The use of Welsh in business. Published by Bwrdd yr Iaith Gymraeg in 1998. Publication and catalogue information, links to buy online and reader comments.