A Strategy for 21st Century Waste Management

Kavazanjian, E. / University of Puerto Rico / Mayaghuez Campus et al. | British Library Conference Proceedings | 1995

Public Libraries of 21st Century

Shah, L. / Kumar, S. / Indian Library Association | British Library Conference Proceedings | 1995

21st Century Bridge Management

Mihalek, B. / Romack, G. P. / International Association for Bridge Maintenance and Safety | British Library Conference Proceedings | 2002

21st century asset management

Ward, Ben / International Association for Hydro-Environment Engineering and Research (IAHR) | HENRY – Bundesanstalt für Wasserbau (BAW) | 2013

Preparing Public Libraries for 21st Century

Satyabrata Sen, S. / Indian Library Association | British Library Conference Proceedings | 1995