00311nam a2200109Ia 4500008004100000082002000041100002100061245004100082260003000123300001500153490003300168260610b        |||||||| |||| 00| 0 eng d  a338.01bM367.EE  aMarshall, Alfred  aElements of economics of industryb/  aLondon:bMacmillan,c1939  axiv, 440p.  aElements of Economics v v.1