00631nam a22001931 4500 1/14394 990225s1988 enk 001 00eng d 0091730996 14874 DLC GR-PeUP 330.947'0853 AG. Aganbegyan, Abel. The Challenge: economics of Perestroika/ Abel Aganbegyan. London: Hutchinson Education, 1988. 248p.; 22cm. Index. Soviet Union Economic development. INST UNIPILB MAIN 20040709 330.947'0853 AG. 00130536 00130536 LOAN 0 1 /webopac/covers/01/14874_0091730996.jpg