000 00349nam a2200133Ia 4500
020 _a0335020097
082 _a500
_bOPC
245 _aCells and organisms
_b: science foundation course unit 18
_cOpen University
260 _aMilton Keynes:
_bOpen University Press,
_c1971.
300 _b94p.
546 _aeng
650 _aCells
_9176624
942 _cBK
999 _c81409
_d81409