Columbia subject headings:
Cosmochemistry--Congresses.
Interstellar matter--Congresses.
Molecular spectra--Congresses.
Paleobiology--Congresses.
Harvard subject headings:
Cosmochemistry--Congresses.
Infrared spectroscopy--Congresses.
Interstellar matter--Congresses.
Interstellar molecules--Congresses.
Microwave spectroscopy--Congresses.
Molecular spectra--Congresses.
Space biology--Congresses
Princeton subject headings:
Cosmochemistry--Congresses.
Interstellar matter--Congresses.
Molecular spectra--Congresses.
Paleobiology--Congresses.