000 003850a00a22001690004500
020 _a955-9093-00-2
245 _aOccupational Health
100 _aEd: Herath, H.M.S.S.D.
260 _bColombo:Ministry of Health
260 _c1990
300 _a1-154pgs
082 _a613.6 O11
306 _aOccupational Health
760 _bNo. 1 cupboard
015 _a003774
887 _a100/=
999 _c1835
_d1835