00423nam a2200157Ia 4500008004100000020001500041082001400056100002200070245004700092260004500139300000800184650001800192650001800210653001200228700002500240170901s1974    xx            000 0 und d  a007015547X  a574bD23W  aDavis, P. William 0aWorld of BiologybLife, Society, Ecosphere  aNew YorkbMcGraw-Hill Book Companyc1974  a674  aLife sciences  aPure Sciences  aBiology  aSolomon, Eldra Pearl