000 00351nam a2200133Ia 4500
008 251112s9999||||xx |||||||||||||| ||und||
040 _aCNCLSA
100 _aPhilip Campbell
_92632
245 0 _aNature
_bInternational Weekly Journal of Science
260 _c1987
_bExcerpta Medica
_aAmsterdam
300 _aP. 1-538
300 _bV. 170
942 _cJRBV
999 _c21078
_d21078