- Innovation in Design,
I. Liddell
Paper 1.2 from CCP: 49, ISBN 0-948749-51-2 (1997)
- A Covered City in the Arctic,
W.I. Liddell
Paper 12.3 from CCP: 7/8, ISBN 0-948749-07-5 (1987)
- Fabric Dams for the Rhein Main Donau Canal,
W.I. Liddell
Paper 12.7 from CCP: 7/8, ISBN 0-948749-07-5 (1987)