000			00376nam a2200145Ia 4500
008			220204s9999 xx 000 0 und d
082			_a581.52 _bFOI
100			_aFOIN, Theodore C
245		0	_aEcological systems and the environment
260			_aBoston _bHoughton Mifflin _c1976
650			_aEcological system
650			_aEcology
650			_aEnvironment
942			_cBK
999			_c26026 _d26026