21.
 |  | Title: Broadband Networks: Strategies and Technologies (Proceedings Europt Series) by Robert A. Cryan, European Optical Society, Society of Photo-Optical Instrumentation Engineers, Commission of the European Communities Directorate-General for Science ISBN: 0819418013 Publisher: Society of Photo Optical Pub. Date: 01 June, 1995 List Price: $85.00 Amazon.com Price: $85.00 |
22.
 |  | Title: Advanced Image and Video Communications and Storage Technologies: 20-23 March 1995, Amsterdam, the Netherlands (Proceedings Europt Series) by Naohisa Ohta, H. U. Lemke, Jean-Claude Lehureau, European Optical Society, Society of Photo-Optical Instrumentation Engineers, Commission of the European Communities Directorate-General for Science ISBN: 0819418021 Publisher: Society of Photo Optical Pub. Date: 01 June, 1995 List Price: $85.00 Amazon.com Price: $85.00 |
23.
 |  | Title: Lidar and Atmospheric Sensing: 19 June, 1995, Munich, Frg (Proceedings EurOpt series) by Richard J. Becherer, Commission of the European Communities Directorate General for Science, Society of Photo-Optical Instrumentation Engineers ISBN: 0819418633 Publisher: SPIE Pub. Date: 01 June, 1995 List Price: $66.00 Amazon.com Price: $44.88 |
24.
 |  | Title: Air Pollution and Visibility Measurements: 20-23 June, 1995, Munich, Frg (Proceedings Europt Series) by Christian Werner, Peter Fabian, Commission of the European Communities Directorate General for Science ISBN: 0819418641 Publisher: Society of Photo Optical Pub. Date: 01 June, 1995 List Price: $134.00 Amazon.com Price: $134.00 |
25.
 |  | Title: Optical Fabrication and Testing: 26-28 May 1999, Berlin, Germany (Spie Proceedings Series, Volume 3739) by Roland Geyl, Jonathan Maxwell, European Optical Society, Society of Photo-Optical Instrumentation Engineers, Commission of the European Communities Directorate-General for Science ISBN: 081943213X Publisher: Society of Photo Optical Pub. Date: 01 August, 1999 List Price: $120.00 Amazon.com Price: $120.00 |
26.
 |  | Title: Sewage Sludge Treatment and Use: New Developments, Technological Aspects and Environmental Effects by A. H. Dirkzwager, P. L'Hermite, A.H. Dirkzwager, Commission of the European Communities Directorate-General for Science, European Water Pollution Control Association, Nederlandse Vereniging Voor Afvalwaterbehandeling En waterkwa ISBN: 1851664181 Publisher: Elsevier Applied Science Pub. Date: 01 October, 1989 List Price: $154.75 Amazon.com Price: $154.75 |