00351nam a2200133Ia 4500008004100000082001600041100001600057245004700073260002800120300000800148650002300156650001800179653002000197170901s1950    xx            000 0 und d  a581.9bW94I  aWulff, E.V. 0aIntroduction to Historical Plant Geography  aUSAbWaltham Massc1950  a223  aBotanical sciences  aPure Sciences  aPlant geography