000 00333nam a2200133Ia 4500
008 220721s1991 xx 000 0 und d
041 _aeng
082 _a573
100 _aSpellerberg, Ian F.
245 _aMonitoring ecological change
260 _aCambridge
_bCambridge Univ.Press
_c1991
300 _a334P.
999 _c80887
_d80887