000 003400000a22001450004500
060 _a100
082 _a574.5 CLA
100 _aClark, George L
245 _aElements of Ecology
260 _aNewYork, John Wiley & Sons INC
260 _c1954
300 _a534
650 _aEcology/ Cell division/Microbiology/genetics/
942 _cBK
999 _c222004
_d222004