00518cam a22001692  4500001001100000005001700011008004100028020002800069040001500097050002100112245006100133250001200194260003800206300002700244650004500271700003200316000000460720151217145818.0070525s        xx            000 0 eng d  a0716731460 :cKES 7,800  aKABUcKABU 0aQH317b.B56 199810aBiology in the laboratory /cDoris R. Helms ... [et al.]  a3rd ed.  aNew York :bW. H. Freeman,c1998.  a1 v. (various pagings) 0aBiologyvLaboratory manuals.@00001552451 aHelms, Doris R.@0000155246