00317    a2200109   4500020001500000082001300015245005100028260005300079300001900132650001900151650003700170  a0030975352  a550bHOL  aHolt earth scienceblaboratory investigations   aNew YorkbHolt, Rinehart and Winstonc1994g1994  aiv,100p.c28cm  aEarth sciences  aNatural sciences and mathematics