@book{UBHD-1057681, author={Campbell, Robert W.}, title={The Economics of soviet oil and gas}, publisher={Hopkins Pr.}, address={Baltimore (Md.)}, year={1968}, pages={279 S.}, language={eng}, library={UB [Signatur: 74 B 1346] ; WS [Signatur: WS/QR 534 C192]}, }