Columbia subject headings:
Harvard subject headings:
International relations--Bibliography--Catalogs.
Peace Palace (Hague, Netherlands). Library--Catalogs.
Peace--Bibliography--Catalogs.
Vredespaleis (Hague, Netherlands). Library--Catalogs.
Princeton subject headings:
Catalogs.
International relations--Bibliography--Catalogs.
Peace Palace (Hague, Netherlands). Library--Catalogs.
Peace--Bibliography--Catalogs.