Hwa, Erh-Cheng A simultaneous equation model of price and quantity adjustment in world primary commodity markets - Washington, D.C: World Bank 1981 - 48p.: ill.; 20cm. - (World Bank Staff Working Papers; 499) . Subjects--Topical Terms: Commercial productsMathematical modelsRaw materials LC Class. No.: ERB PAM HF1040.7.H85