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National Environmental Policies A Comparative Study of Capacity-Building : With a Data Appendix : International Profiles of Changes Since 1970 by Helmut Weidner, Martin Janicke, Helga Jorgens, Helge Jèorgens Hardcover, 320 Pages, Published 1997 by Springer-Verlag ISBN-13: 978-0-387-61519-6, ISBN: 0-387-61519-9 |
Helge Jèorgens