301.14 Afa S Afanasiev,Viktor Grigorevich, 1922- Social information and the regulation of social development [by] V. Afanasyev. [Tr. from the Russian by P. I. Krotkov and I. P. Medova] Moscú, Progress Publishers [1978] 363 p. 21 cm. (Socialism today) Notas bibliográficas al pie de las páginas.