000 00305nam a2200145Ia 4500
008 220421s9999||||xx |||||||||||||| ||und||
020 _c240
040 _aET
100 _aRAY PAWLETT
245 3 _aAN ECOLOGICAL APPROACH
260 _bBSCS
_aENGLAND
300 _a800
500 _a19652
942 _cBK
999 _c25873
_d25873