00000nam a2200000 a 4500 20251202164232.0 338.52 LEF Leftwich , Richard H Price system and resource allocation Chicago Dryden Press 1985 631 p. 22cm. PB Economics _ 9980 C 4350 4350 0 0 0 0 PU PU 1998-04-09 0 338.52 LEF 9980 BK