English-French-Spanish-Russian manual of the terminology of public international law (law of peace) and international organizations / English-French-Russian text prepared by Isaac Paenson ; Spanish translation prepared under the supervision of M. Medina ; the final Spanish text has been checked by A. Sureda, in co-operation with the Office of Legal Affairs, United Nations, in respect of the English text ; le Département de droit international public et organisation internationale de la Faculté de droit de l'Université de Genève, in respect of the French text ; Institute of State and Law of the Academy of Sciences of the USSR, in respect of the Russian text