00443nam a2200157Ia 4500008004100000082001800041100002200059245006200081250000600143260004700149300000800196650002300204650001800227653002200245653001800267170901s1956    xx            000 0 und d  a581.524bO50S  aOosting, Henry J. 0aStudy of Plant CommunitiesbIntroduction to Plant Ecology  a2  aSan FranciscobW. H. Freeman And Co.c1956  a440  aBotanical sciences  aPure Sciences  aPlant communities  aPlant ecology