"On top of the world is part of the major Penrhys Pilgrims Project"--T.p. verso.
On top of the world : a people's history of the Penrhys Estate = Ar ben y byd : hanes pobl Stâd Penrhys. ISBN 9780955918629. Published by Penrhys Partnership in 2009. Publication and catalogue information, links to buy online and reader comments.