00320nam a2200133Ia 4500082001800000100002000018245008200038260000900120300001600129490001600145490001100161490000900172500000500181  a382.41 Sw74b  aSwerling, B. C.  aSome interrelationships between agricultural trade and economic developmentb  c1961  app. 364-391  vv.14 no. 03  aKeklos  a1961  a