Our 21st Century Challenge: Healthier Communities

Healthy Communities Committee / Christy, H. / Harrison, D. et al. | British Library Online Contents | 2012

Retailing in the 21st Century: A Planner's Challenge

Jamieson, W. | British Library Online Contents | 1996

Urban Bridge Aesthetics: Major Challenge of the 21st Century

Cywinski, Z. / Kido, E. M. / International Association for Bridge and Structural Engineering | British Library Conference Proceedings | 2000

Smart about cities : visualising the challenge for 21st century urbanism

Hajer, Maarten A. ;Dassen, Ton ;Hajer, Maarten | TIBKAT | 2014

Non-circular full face tunnel boring machines - 21st century challenge

Krcik, M. | British Library Conference Proceedings | 2007