000 00611nam a22001697a 4500
008 160108b xxu||||| |||| 00| 0 eng d
020 _a0030351898
082 _2[2004]
_aDK12 507
_bEc19
245 _aEcolabs & field activities/
260 _aOrlando, Florida:
_bHolt, Rinehart & Winston,
_c[c2004]
300 _ax, 118 pages:
_billustrations;
_c28 cm.
440 _91474
_aHolt Science and Technology
650 0 _91476
_aScience
_xStudy and teaching (Secondary)
650 0 _91477
_aLife sciences
_xStudy and teaching (Secondary)
650 0 _91478
_aEarth sciences
_xStudy and teaching (Secondary)
942 _2ddc
_cDC
999 _c560
_d560