000			01158nam a22002297a 4500
999			_c12893 _d12893
008			190204b ||||| |||| 00| 0 eng d
020			_a971-23-2026-X
082			_21996 _aDFil.577 _bEn892
100			_aSantiago, Florenda I. _936484
245			_aEnvironmental science: _ba shared responsibility towards the earth _cFlorenda I. Santiago...[et al].
260			_aManila: _bRex Book Store, _cc1996.
300			_ax, 162 pages ; _c23 cm.
500			_aIncludes glossary, bibliography and index.
505			_aIntroduction--The ecosystem--The biogeochemical cycles and their importance--Populations and communities--Humankind and the environment--Humankind and the environment--Personal pollution--Air pollution--Water pollution--Land pollution--Noise pollution--Radiation pollution--The energy situation--Population,food and hunger--Towards a brighter ecological future
650			_aEnvironmental science _936485
700			_aDorado, Salvacion L. _936486
700			_aConteras, Lourdes E. _936487
700			_aAquino, Ma. SAlvacion G. _936488
700			_aRetondo, Salvacion G. _936489
700			_aLamorena, Melchora B. _936490
942			_2ddc _cDFIL