000 00326nam a2200121 4500
020 _a9241544988
050 _aRC773
_bW3 1996
100 _aWagner Gregory R.
245 _aScreening and surveillance of workers exposed to mineral dusts
260 _aGeneva
_bWorld Health Organization
_c1996
300 _aix,68p.
942 _cBK
999 _c9451
_d9451