Columbia subject headings:
Harvard subject headings:
Astronomy--Charts, diagrams, etc.
Astrophysical journal. supplement series--no. 201, 23:371-420, November, 1971.
Coordinates
Galaxies--Clusters
Stars--Atlases
Princeton subject headings:
Astronomy--Charts, diagrams, etc.
Atlases.
Galaxies--Clusters.
Stars--Atlases.