Richard M. Nixon press conference

Chicago citation style
President (1969-1974 : Nixon). White House Photo Office. 1969-1974, General Services Administration. National Archives and Records Service. Office of Presidential Libraries. Office of Presidential Papers. 1/20/1969-ca. 12/1974. Richard M. Nixon press conference. 1970-04-17. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/194673. (Accessed June 18, 2018.)
APA citation style
President (1969-1974 : Nixon). White House Photo Office. 1969-1974, General Services Administration. National Archives and Records Service. Office of Presidential Libraries. Office of Presidential Papers. 1/20/1969-ca. 12/1974, (1970-04-17) Richard M. Nixon press conference. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/194673
MLA citation style
President (1969-1974 : Nixon). White House Photo Office. 1969-1974, General Services Administration. National Archives and Records Service. Office of Presidential Libraries. Office of Presidential Papers. 1/20/1969-ca. 12/1974. Retrieved from the Digital Public Library of America <http://catalog.archives.gov/id/194673>.
Note: These citations are programmatically generated and may be incomplete.