Core List for an Environmental Reference CollectionA listing of information resources in the areas of environmental protection, management, and science as selected by librarians supporting the United States Environmental Protection Agency. Each entry includes the title, author or editor, publication date, and publisher or distributor of the resource. Many of the entries include a brief description of the resource as well. This edition of the Core List is a complete revision of the second edition, which was published in 2002 as EPA 260-R-01-001. The original Core List was published in 1993 as EPA publication EPA 220-R-93-007. The EPA National Library Network plans to update the Core List periodically, expanding it to include new information sources and new media formats. Previous editions of the Core List can be accessed via EPA’s National Service Center for Environmental Publications (NSCEP).