(1975). Inter-Firm comparison an incentive to productivity. Paris: OEEC.
Chicago Style aipamenaInter-Firm Comparison an Incentive to Productivity. Paris: OEEC, 1975.
MLA aipamenaInter-Firm Comparison an Incentive to Productivity. Paris: OEEC, 1975.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.