University of Denver Chancellor Emeritus, and former Westinghouse Broadcasting chief, Daniel Ritchie speaking at National Park Foundation event at the Phipps Mansion in Denver, Colorado, honoring Junior Ranger Program providing hands-on learning opportunities for youth in National Parks

Chicago citation style
Department of the Interior. National Business Center. Administrative Operations Directorate. Division of Employee and Public Services. Creative Communications Branch. Photographic Services. 2000. University of Denver Chancellor Emeritus, and former Westinghouse Broadcasting chief, Daniel Ritchie speaking at National Park Foundation event at the Phipps Mansion in Denver, Colorado, honoring Junior Ranger Program providing hands-on learning opportunities for youth in National Parks. 2005-10-20. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/5627783. (Accessed November 12, 2018.)
APA citation style
Department of the Interior. National Business Center. Administrative Operations Directorate. Division of Employee and Public Services. Creative Communications Branch. Photographic Services. 2000, (2005-10-20) University of Denver Chancellor Emeritus, and former Westinghouse Broadcasting chief, Daniel Ritchie speaking at National Park Foundation event at the Phipps Mansion in Denver, Colorado, honoring Junior Ranger Program providing hands-on learning opportunities for youth in National Parks. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/5627783
MLA citation style
Department of the Interior. National Business Center. Administrative Operations Directorate. Division of Employee and Public Services. Creative Communications Branch. Photographic Services. 2000. Retrieved from the Digital Public Library of America <http://catalog.archives.gov/id/5627783>.
Note: These citations are programmatically generated and may be incomplete.