Columbia subject headings:
Analytical chemistry--Congresses.
Geochemical prospecting--Congresses.
Mineralogical chemistry--Congresses.
Harvard subject headings:
Analytical chemistry--Congresses
Geochemical prospecting--Congresses.
Mineralogical chemistry--Congresses.
Princeton subject headings:
Analytical chemistry--Congresses.
Geochemical prospecting--Congresses.
Mineralogical chemistry--Congresses.