pod redakcją Marii Baścik i Bożeny Degórskiej = Natural environment of Krakow : resources, protection, management / editors, Maria Baścik and Bożena Degórska
prepared for United States Agency for International Development under contract number PDC-5517-1-00-0105-00 ; prepared by Tropical Research & Development, Inc., John A. Lichte ... [and others]
a joint publication by the World Resources Institute, the United Nations Environment Programme; the United Nations Development Programme, the World Bank