Columbia subject headings:
Detergent pollution of the sea.
Marine pollution--English Channel.
Oil pollution of rivers, harbors, etc.
Torrey Canyon (Ship)
Harvard subject headings:
Detergent pollution of the sea
Marine pollution--English Channel.
Oil pollution of rivers, harbors, etc.
Torrey Canyon (Ship)
Princeton subject headings:
Detergent pollution of the sea.
Marine pollution--English Channel.
Oil pollution of rivers, harbors, etc.
Torrey Canyon (Ship)