00388nam a2200109Ia 450000500170000000800410001705000330005810000150009124500870010626000470019365000380024020251229190835.0251229s9999    xx            000 0 und d  aQD 40 .S53 V.1 C.1:AFR.C.2-3  aSigei,Joel 0aSecondary school chemistry form 1 pupils'book/J. Sigei and J. O.MidiwocJoel Sigei  aNairobibUniversity of Nairobi Pressc2004  aChemistry-Handbooks, Manuals Etc.