000 00446nam a2200157Ia 4500
003 LDD
008 181029s9999 xx 000 0 und d
020 _a335041558
040 _cLDD
245 0 _aMan and ecosystems/ Man and communities of organisms
260 _aMilton Keynes
_bOpen University
_c1974
300 _a55
440 _aScience : a third level course
_v Block D (S323) (Units 15-16)
901 _a1943
_b01-03-2000
942 _2ddc
_cBK
999 _c18291
_d18291