National Park Service's Joanne Hanley, left, and Secretary Gale Norton with Flight 93 National Memorial sign, on occasion of the swearing in of the Flight 93 National Memorial Federal Advisory Commission. Event was held at site of temporary memorial, near Shanksville, Pennsylvania, honoring passengers andcrew of plane hijacked on September 11, 2001

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. National Park Service's Joanne Hanley, left, and Secretary Gale Norton with Flight 93 National Memorial sign, on occasion of the swearing in of the Flight 93 National Memorial Federal Advisory Commission. Event was held at site of temporary memorial, near Shanksville, Pennsylvania, honoring passengers andcrew of plane hijacked on September 11, 2001. 2003-09-11. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/5616436. (Accessed September 26, 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, (2003-09-11) National Park Service's Joanne Hanley, left, and Secretary Gale Norton with Flight 93 National Memorial sign, on occasion of the swearing in of the Flight 93 National Memorial Federal Advisory Commission. Event was held at site of temporary memorial, near Shanksville, Pennsylvania, honoring passengers andcrew of plane hijacked on September 11, 2001. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/5616436
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/5616436>.
Note: These citations are programmatically generated and may be incomplete.