International organizations in the social sciences : = Les organisations internationales de sciences sociales : a summary description of the structure and activities of non-governmental organizations specializes in the social sciences and in consultative relationship with UNESCO (categories A and B) =: apercu de la structure et des activites des organisations non gouvernementales specialisees dans le domaine des sciences sociales et beneficiant d'arrangements consultatifs (categories A et B) apres de l'UNESCO - Marchall, T. H. (Reports and papers in the Social Sciences : ;, 1965)