000 00313nam a2200133Ia 4500
008 170324s9999 xx 000 0 und d
082 _a574.191
100 _a"Wiegert, Richard G."
245 0 _aEcological energetics
260 _bDowden hutchinson & ross inc.
260 _c1976
365 _b0.00
942 _cBK
999 _c4558
_d4558