Keywords: CONCERNED ABOUT TRIDENT BOARD MEMBER WALTER W. HELLER UNIVERSITY OF MINNESOTA ECONOMICS PROFESSOR, ATTENDS A BOARD... - NARA - 557031.jpg Scope and content General notes 557031 Local identifier 412-DA-14579 Environmental Protection Agency 12/02/1970 - NARA-Place Seattle King county Washington United States North and Central America inhabited place 4202922 47 6 -122 32 <br /> Still Picture Records Section Special Media Archives Services Division NWCS-S National Archives at College Park 8601 Adelphi Road College Park MD 20740-6001 08/1974 Record group Record Group 412 Records of the Environmental Protection Agency 1944 - 2006 Record group ARC 708 DOCUMERICA The Environmental Protection Agency's Program to Photographically Document Subjects of Environmental Concern compiled 1972 - 1977 Series ARC 542493 File unit File unit ARC Variant control numbers Agency-Assigned Identifier 243/59/014579<br /> NAIL Control Number NWDNS-412-DA-14579 Other versions <gallery> File CONCERNED_ABOUT_TRIDENT_BOARD_MEMBER_WALTER_W _HELLER_UNIVERSITY_OF_MINNESOTA_ECONOMICS_PROFESSOR _ATTENDS_A_BOARD _-_NARA_-_557031 tif tif File CONCERNED_ABOUT_TRIDENT_BOARD_MEMBER_WALTER_W _HELLER_UNIVERSITY_OF_MINNESOTA_ECONOMICS_PROFESSOR _ATTENDS_A_BOARD _-_NARA_-_557031 jpg jpg </gallery> NARA-cooperation PD-USGov Concerned About Trident |