000 00478nam a2200157Ia 4500
003 LDD
008 181029s9999 xx 000 0 und d
020 _a033504154X
040 _cLDD
245 0 _aBiotic factors
_bfood chains and symbiosis/ Competive and other interaction betw
260 _aMilton Keynes
_bOpen University
_c1974
300 _aCa156p
440 _aScience : a third level course
_v Block C (Units 12-14) (S323)
901 _a1943
_b01-03-2000
942 _2ddc
_cBK
999 _c18290
_d18290