00290cam a22000977a 4500008004000000020001800040082001300058245006000071260005000131300001100181180718b1975   xxu||||| |||| 00| 0 eng d  a0 10 160610 9  aT39 Un3e  aWorld economic interdependence and trade in commodities  aLondonbHer Majesty's Stationery Officec1975  a109+p.