330.91 Geo P Sociedad Geografica de la URSS Problems of economic regionalisation in the developing countries. [Tr. from the Russian by R. Kostyuk, V. Klimenko] Moscow, "Nauka" Publ. House, Central Department of Oriental Literature, 1968 195 p. tablas. 20cm. A la cabeza del titulo: " Geographical Society of the USSR., Oriental Commission and Moscow Branch. Geographical Institute of the U.RSS. Academy of Sciences"