000 00387nam a2200145Ia 4500
008 230917s9999||||xx |||||||||||||| ||und||
040 _e118758
_aMAIN
041 _aEnglish
082 _a574.5 O2E
100 _aOpen University
245 0 _aEcology block C individuals & communities. unit 12-14.
260 _aMilton Keyness
_bOpen University
_c1974
300 _a50p. p.
942 _cBK
999 _c42309
_d42309