Columbia subject headings:
Harvard subject headings:
Chess--Tournaments, 1981.
Karpov, Anatoly, 1951-
Korchnoĭ, Viktor, 1931-
World Chess Championship
Princeton subject headings:
Chess--Collections of games.
Chess--Tournaments, 1981.
Karpov, Anatoly, 1951-
Korchnoĭ, Viktor, 1931-2016.
World Chess Championship.