00445nam a2200157Ia 4500008004100000082001800041100002100059245006200080250000600142260005000148300000800198650002300206650001800229653002200247653001800269170901s1956    xx            000 0 und d  a581.524bO50S  aOosting,Henry J. 0aStudy of Plant CommunitiesbIntroduction to Plant Ecology  a2  aSan FranciscobW.H. Freeman and Companyc1956  a440  aBotanical sciences  aPure Sciences  aPlant communities  aPlant ecology