000 00453nam a22001697a 4500
003 OSt
005 20140310182346.0
008 130313t xxu||||| |||| 00| 0 eng d
020 _a0673429563
050 _aQ 161.2
_b.Sc425pe 1993
082 _aGS 507.821
_bH363 1993
245 _aProtecting the Earth /
260 _aGlenview, Illinois :
_bScottForesman,
_c1993.
300 _a48 p. :
_bcol. ill. ;
_c28 cm.
942 _2lcc
_cBK-GS
999 _c12227
_d12227