00294nam a2200097Ia 450000500170000000800410001705000170005810000270007524500660010226000280016820251229124309.0251229s9999    xx            000 0 und d  aHF 1611 .B76  aBrown, Michael Barratt 0aShort changedb Africa and world tradecMichael Barratt Brown  aUSAb Pluto Pressc1992