Exposition of a Plan for a Metropolitan Water Supply, by L. D. B. Gordon and C. LiddellLewis Dunbar B Gordon, Charles Liddell · First published 2015Open the Tome
Turnstones 2 (English for Scotland S2)Fitzpatrick, Brian., Gordon Liddell, Alan Keay, Robbie Robertson, Sheila Hughes · First published 2002Open the Tome