00310cam a2200133ua 4500041001000000082001800010100002100028245002600049260005800075300001200133504000500145942000700150999001900157  aengh  a330.1bLOS/EC  alosch, August  .  aEconomic of location   aLondon : bNew haven, Yole University press , c1964.  a520 ; .  a  cBK  c338618d338618