Columbia subject headings:
Chemical oceanography--Methodology--Handbooks, manuals, etc.
Environmental monitoring--Methodology--Handbooks, manuals, etc.
Estuaries.
Estuarine biology--Methodology--Handbooks, manuals, etc.
Estuarine oceanography--Methodology--Handbooks, manuals, etc.
Tide-waters.
Water--Sampling--Methodology--Handbooks, manuals, etc.
Harvard subject headings:
Princeton subject headings:
Estuaries--Québec (Province)
Estuarine ecology.
Estuarine oceanography--Research.