U.S. directory of environmental sources
By: United States International Environmental Referral Center.
Contributors: United States. Environmental Protection Agency.
Edition: 2d ed.
Series: EPA ; 840-77-009; EPA (Series) -- 840-77-009.
Publisher: Environmental Protection Agency, Assistant Administrator for Planning & Management, Office of Administration
Published: 1977
Place of publication: Washington
Language: eng
Number of pages: 738
Subjects: Environmental protection -- Information services -- International cooperation.; Human ecology -- Directories.
Notes: "National Focal Point of the United Nations Environment Program/ International Referral System."

Issued Sept. 1977.