P1042 Yn cynnwys cyfeiriadau llyfryddol = Includes bibliographical references.
P1073 Testun Cymraeg/Saesneg = Welsh/English text tĂȘte-bĂȘche.
Buy a copy
OBNB doesn't sell books, but you may be able to find a copy at one of these websites:
Parciau cenedlaethol = National parks. Published by Welsh Local Government Association in 1999. Publication and catalogue information, links to buy online and reader comments.