Columbia subject headings:
Black Widow (Night fighter plane)
Military assistance, American--Saudi Arabia.
Saudi Arabia--Commerce--United States.
United States--Commerce--Saudi Arabia.
Harvard subject headings:
Black Widow (Night fighter plane)
Eagle (Jet fighter plane)
Military assistance, American--Saudi Arabia.
Saudi Arabia--Commerce--United States.
United States--Commerce--Saudi Arabia.
Princeton subject headings:
Black Widow (Night fighter plane)
Military assistance, American--Saudi Arabia.
Saudi Arabia--Commerce--United States.
United States--Commerce--Saudi Arabia.