00318nam a22000977a 450000500170000000800410001702000220005824500230008026000460010350000710014920261106130335.0261106b        |||||||| |||| 00| 0 eng d  a978-978-020-623-9  aIntegrated science  bEvans brotherseEnglish languagehNigeria  aIt has revolutionised the study of junior secondary school science