Nichol, Douglas & Michael G. Bassett & Valerie K. Deisler (edits). books & textbook
GEOLOGICAL SERIES NO. 23: URBAN GEOLOGY IN WALES.
Nichol, Douglas & Michael G. Bassett & Valerie K. Deisler (edits).
National Museums & Galleries of Wales /2004T Paperback
isbn-10: 0720005493 / isbn-13: 9780720005493
