000 00297nam a22001337a 4500
020 _a0880476232
050 _aMED RA969
_bK67
100 _aKoren, H
245 _aEnvironmental health and safety
260 _aNew York
_bPergamon
_c1974
300 _axxii,
_bill.
650 _aHealth
942 _cBK
999 _c7172
_d7172