Le developpement social symposium dirige par Raymond Aron [et] Bert F. Hoselitz. - Symposium on Social Development (1961 : Paris).; Aron, Raymond 1905- .; Hoselitz, Berthold Frank 1913- .; France Commission pour l'education, la science et la culture; Poland Polski Komitet de Spraw UNESCO ([Paris Mouton, 1965)
English or French.
Sponsored by the French and Polish National Commissions for Unesco.
Keywords: Social change; Social history