00378nam a2200157Ia 4500008004100000020001800041035001000059082002100069100003400090245002400124250000600148260004300154300000800197500000900205650000600214210723s9999||||xx |||||||||||||| ||und||  a0 247 12719 1  a24382  a330.1BSAP / LAD  aSapsford, David / Ladd, James 0aEssential Economics  a-  aHertfordshirebHart- Davis Educational  a288  a7836  a-