Columbia subject headings:
Powers, Francis Gary, 1929-1977.
U-2 Incident, 1960.
Harvard subject headings:
Powers, Francis Gary, 1929---Trials, litigation, etc.
Powers, Francis Gary, 1929-1977--Trials, litigation, etc.
Soviet Union. Voennai͡a kollegii͡a.
U-2 Incident, 1960
Princeton subject headings:
Powers, Francis Gary, 1929-1977--Trials, litigation, etc.
U-2 Incident, 1960.