00838nam a2200229 a 450000100060000000300080000600500170001400800410003103500190007204000320009104100080012308200220013110000310015324500790018426000450026330000290030849000750033750000550041250000200046765000460048783000750053350309BD-RjUL20211209075505.0160824s1953 enka 001 0 eng d a(BD-RjUL)50429 aAMKcAMKdUKMdBD-RjULbeng aeng a373223bNET 19531 aNewbury, Norman Frederick.14aThe teaching of chemistry in tropical secondary schools /cby N.F. Newbury aOxford University Press :bLondon,c1953 a299 p. :bill. ;c22 cm.1 aUNESCO handbooks on the teaching of science in tropical countries ;v9 a"Based on the author's The teaching of chemistry." aIncludes index. 0aChemistryxStudy and teaching (Secondary) 0aUNESCO handbooks on the teaching of science in tropical countries ;v9