000 00293pam a2200109a 44500
082 _a614.772
_bUN3P
100 _a
245 1 _aPUBLIC HEALTH SERVICE DRINKING WATER STANDARDS
260 _aWashington
_bU.S. Department Of Health, Education, And Welfare
_c
964 _gCIRC
997 _aK838 C
999 _c381422
_d381422