Secretary Gale Norton speaking at press conference during visit to Yosemite National Park, California. Visit was designed to promote Yosemite infrastructure improvement project plans and to highlight Earth Day themes

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. Secretary Gale Norton speaking at press conference during visit to Yosemite National Park, California. Visit was designed to promote Yosemite infrastructure improvement project plans and to highlight Earth Day themes. 2004-04-22. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/5620725. (Accessed December 16, 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, (2004-04-22) Secretary Gale Norton speaking at press conference during visit to Yosemite National Park, California. Visit was designed to promote Yosemite infrastructure improvement project plans and to highlight Earth Day themes. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/5620725
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/5620725>.
Note: These citations are programmatically generated and may be incomplete.