00323nam a2200121Ia 4500008004100000082001500041100002100056245004700077260004500124300000800169942000700177999001700184190709s9999    xx            000 0 und d  a330.99 Ek1  aEkblaw, Sidney E 0aWorkbook for economic and social geography  aNew YorkbGregg Publishing Divisioc1958  a157  cBK  c41218d41218