00317nam a2200121Ia 450000500170000000800410001704100080005808200150006610000130008124500570009426000350015130000090018620260720174614.0260720s2026    xx            000 0 und d  aeng  a540.1 LOUS  aLouis, V  aSimple chemistry experiments with everyday materials  aNew DelhibGoodwill Publishers  a128p