000 00629cas a2200217 4500
001 54940
035 _a(Sirsi) 54940
245 0 0 _aSerie Ambiental.
260 _aWashington, D.C. :
_bOrganizaci'on Panamericana de la Salud,
_c1981-.
362 0 _aDC.PAHO.
546 _aeng spa.
561 _aWHO periodical
596 _a4
650 0 2 _aEnvironmental health
_xperiodicals.
651 2 _aAmericas.
690 _aEnvironment and Public Health.
710 2 _aPan American Health Organization.
591 _aEnglish ed.: Envrironmental Series
008 950824 1981 1 0 spa
942 _2NLM
_cPERIODICAL
999 _c35680
_d35680