The institutionalization of environmental concern is now widespread in American society. This reference was written to help professionals and laymen locate important sources of environmental information. Among the sources covered in the book are federal and state government agencies, private environmental and conservation organizations, professional societies and trade associations, corporations, books, and films. Short but comprehensive chapters on fund raising and environmental law are included. By quickly scanning the table of contents, the reader can locate the chapter dealing with the type of information in which he is interested. In general, the subject matter of each chapter is self-explanatory, and many of the chapters are preceded by introductions indicating their scope and organization. The listings in each chapter are comprehensive including, when appropriate, the name of the director, the address, name of the group, agency, etc., activities or aims, publications, price, and source. A further guide to these entries is provided by an alphabetical index found at the end of the book. (TK)