Columbia subject headings:
Barite--Environmental aspects--Mexico, Gulf of.
Barium--Environmental aspects.
Barium--Toxicology.
Benthos--Mexico, Gulf of.
Drilling muds--Environmental aspects--Mexico, Gulf of.
Marine ecology--Mexico, Gulf of.
Offshore oil industry--Environmental aspects--Mexico, Gulf of.
Offshore oil well drilling--Environmental aspects--Mexico, Gulf of.
Radium--Environmental aspects.
Radium--Toxicology.
Harvard subject headings:
Barite--Mexico, Gulf of--Environmental aspects.
Barium--Environmental aspects.
Barium--Toxicology.
Benthos--Mexico, Gulf of.
Drilling muds--Mexico, Gulf of--Environmental aspects.
Marine ecology--Mexico, Gulf of.
Offshore oil industry--Environmental aspects--Mexico, Gulf of
Offshore oil well drilling--Mexico, Gulf of--Environmental aspects.
Radium--Environmental aspects.
Radium--Toxicology.
Princeton subject headings:
Barite--Environmental aspects--Mexico, Gulf of.
Barium--Environmental aspects.
Barium--Toxicology.
Benthos--Mexico, Gulf of.
Drilling muds--Environmental aspects--Mexico, Gulf of.
Marine ecology--Mexico, Gulf of.
Offshore oil industry--Environmental aspects--Mexico, Gulf of.
Offshore oil well drilling--Environmental aspects--Mexico, Gulf of.
Radium--Environmental aspects.
Radium--Toxicology.