-- See Also the narrower term Aerial photography Here are entered works on creating aerial photographs. Works on interpreting aerial photographs are entered under Photographic interpretation. Works on handling, maintaining, and indexing aerial photographs in unbound collections are entered under Aerial photographs.
-- See Also the narrower term Electronic surveillance Here are entered general works on the monitoring of events from remote or secret locations by electronic means in the fields of law enforcement, criminal investigation, espionage, remote sensing for scientific purposes, etc.
