Photograph “Aerial view of downtown Monrovia”. Illustration from <b>A history of flying and photography in the Photogrammetry Division of the National Ocean Survey, 1919-79 / John T. Smith, Jr. A history of flying and photography in the Photogrammetry Division of the National Ocean Survey, 1919-79 / John T. Smith, Jr.</b>
National Oceanic and Atmospheric Administration, National Ocean Survey,
1954
<a rel="nofollow" class="external text" href="http://babel.hathitrust.org/cgi/pt?id=uiug.30112105104019;view=thumb;seq=169">Photograph</a>, Internet Archive, Open Library, Collections of the University of Illinois ...; HATHI-Trust