000 00262nam a2200109Ia 4500
001 21917
008 170722s9999 xx 000 0 und d
245 _aZinc :
_b A case study /
260 _bOpen University Press ,
_c1975.
300 _a36 p.
_c28cms
942 _cGEN
999 _c94961
_d94961