Columbia subject headings:
Ecological disturbances--Gulf States.
Gulf States--Environmental conditions.
Hurricane Katrina, 2005--Environmental aspects.
Harvard subject headings:
Ecological disturbances--Gulf States.
Gulf States--Environmental conditions.
Hurricane Katrina, 2005--Environmental aspects.
Princeton subject headings:
Ecological disturbances--Gulf States.
Gulf States--Environmental conditions.
Hurricane Katrina, 2005--Environmental aspects.