00478nam a22001937a 450000500170000002000180001704100130003508200140004810000220006224500330008425000110011726000470012830000100017565000120018570000240019770000210022170000240024270000180026620250601060724.0  a9789937755320  aEnglish   a540bPIO   aMishra, Akkal Dev  aPioneer Chemistry Grade XII   a3rd ed  aKathmandu bDreamland publication c2081BS  a664p   aScience  aKalauni, Surya Kant  aJoshi, Ram Datt   aPal, Khadka Bahadur  aPandey, Anil