Columbia subject headings:
Conference on Security and Cooperation in Europe (1972-1975 : Helsinki, Finland)
Europe--Politics and government--1989---Congresses.
European cooperation--Congresses.
International cooperation--Congresses.
Harvard subject headings:
Conference on Security and Cooperation in Europe (1972 : Helsinki, Finland)
Europe--Politics and government--1989---Congresses.
European cooperation--Congresses.
International cooperation--Congresses
Princeton subject headings:
Conference on Security and Cooperation in Europe (1972-1975 : Helsinki, Finland)
Europe--Politics and government--1989---Congresses.
European cooperation--Congresses.
International cooperation--Congresses.