00378nam a2200157Ia 45000010005000000080041000050200018000460400013000640820020000771000017000972450056001142600009001703000011001795460007001906500023001978028140324s9999    xx            000 0 und d  a0-582-01636-3  cPK-LaUMT  a 333.012bKNA-C  aKnapp, B. J.  aChallenge of the economic environmentcKnapp, B. J.  c1989  a271 p.  aEN  aEconomic geography