Sources of information for environmental involvement are presented in this bibliography, designed not only as a single reference work but also to demonstrate the variety of sources which exist. Catalogued are organizations, institutions, agencies, and groups concerned with environmental affairs and providing international, continental, national, regional, state, and local coverage. Arrangement of entries is alphabetical by author, issuing agency, or title, depending upon which is most appropriate or useful. No subject arrangement or indexing is provided. One hundred thirteen sources are listed. (BL)