00372nam a22001097a 4500008004100000020001500041050002300056100003200079245006900111260004800180300003400228150331b        xxu||||| |||| 00| 0 eng d  a0669144916  aHB 171.5 .H46 1991  aHenderson, J. Vernon.d1991  aPrinciples of Economics/cJ. Vernon Henderson and William Poole.  aLexington:bD. C. Heath and Company,c1991.  axxxii, 1235p.bIncludes Index