Columbia subject headings:
Harvard subject headings:
IUE (Artificial satellite)
Planetary nebulae--Atlases.
Symbiotic stars--Atlases.
Ultraviolet spectra.--Atlases.
Princeton subject headings:
IUE (Artificial satellite)
Planetary nebulae--Atlases.
Symbiotic stars--Atlases.
Ultraviolet spectra--Atlases.