Columbia subject headings:
Harvard subject headings:
Exxon Valdez (Ship)--Accidents--Congresses.
Offshore oil industry--Alaska--Prince William Sound Region--Environmental aspects--Congresses.
Oil spills--Alaska--Prince William Sound Region--Cleaning--Congresses.
Oil spills--Alaska--Prince William Sound Region--Congresses.
Oil spills--Alaska--Prince William Sound Region--Prevention--Congresses.
Prince William Sound (Alaska)--Congresses.
Tankers--Accidents--Alaska--Prince William Sound Region--Congresses.
Water--Pollution--Alaska--Prince William Sound Region--Environmental aspects--Congresses.
Princeton subject headings:
Environmental auditing--Alaska--Prince William Sound Region--Congresses.
Exxon Valdez (Ship)--Congresses.
Oil spills--Alaska--Prince William Sound Region--Management.
Prince William Sound (Alaska)--Congresses.
Tankers--Accidents--Environmental aspects--Alaska--Prince William Sound Region--Congresses.