Columbia subject headings:
Double stars--Congresses.
Eggleton, P. P. (Peter P.), 1940-
Multiple stars--Congresses.
Harvard subject headings:
Double stars--Congresses.
Eggleton, P. P. (Peter P.), 1940-
Multiple stars--Congresses.
Princeton subject headings:
Double stars--Congresses.
Eggleton, P. P. (Peter P.), 1940-
Multiple stars--Congresses.